Resolve XSS Vulnerability in the HTML Writer (#1719)

Resolve XSS Vulnerability in the HTML Writer
This commit is contained in:
Mark Baker 2020-11-19 11:59:57 +01:00 committed by GitHub
parent 6fe653179f
commit 0ed5b800be
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 621 additions and 292 deletions

View File

@ -28,6 +28,10 @@ and this project adheres to [Semantic Versioning](https://semver.org).
- Ensure that the list of shared formulae is maintained when an xlsx file is chunked with readFilter[Issue #169](https://github.com/PHPOffice/PhpSpreadsheet/issues/1669). - Ensure that the list of shared formulae is maintained when an xlsx file is chunked with readFilter[Issue #169](https://github.com/PHPOffice/PhpSpreadsheet/issues/1669).
- Fix for notice during accessing "cached magnification factor" offset [#1354](https://github.com/PHPOffice/PhpSpreadsheet/pull/1354) - Fix for notice during accessing "cached magnification factor" offset [#1354](https://github.com/PHPOffice/PhpSpreadsheet/pull/1354)
### Security Fix (CVE-2020-7776)
- Prevent XSS through cell comments in the HTML Writer.
## 1.15.0 - 2020-10-11 ## 1.15.0 - 2020-10-11
### Added ### Added

View File

@ -39,7 +39,7 @@
] ]
}, },
"require": { "require": {
"php": "^7.2|^8.0", "php": "^7.2||^8.0",
"ext-ctype": "*", "ext-ctype": "*",
"ext-dom": "*", "ext-dom": "*",
"ext-gd": "*", "ext-gd": "*",
@ -54,11 +54,12 @@
"ext-zip": "*", "ext-zip": "*",
"ext-zlib": "*", "ext-zlib": "*",
"maennchen/zipstream-php": "^2.1", "maennchen/zipstream-php": "^2.1",
"markbaker/complex": "^1.5|^2.0", "markbaker/complex": "^1.5||^2.0",
"markbaker/matrix": "^1.2|^2.0", "markbaker/matrix": "^1.2||^2.0",
"psr/simple-cache": "^1.0", "psr/simple-cache": "^1.0",
"psr/http-client": "^1.0", "psr/http-client": "^1.0",
"psr/http-factory": "^1.0" "psr/http-factory": "^1.0",
"voku/anti-xss": "^4.1"
}, },
"require-dev": { "require-dev": {
"dompdf/dompdf": "^0.8.5", "dompdf/dompdf": "^0.8.5",
@ -66,7 +67,7 @@
"jpgraph/jpgraph": "^4.0", "jpgraph/jpgraph": "^4.0",
"mpdf/mpdf": "^8.0", "mpdf/mpdf": "^8.0",
"phpcompatibility/php-compatibility": "^9.3", "phpcompatibility/php-compatibility": "^9.3",
"phpunit/phpunit": "^8.5|^9.3", "phpunit/phpunit": "^8.5||^9.3",
"squizlabs/php_codesniffer": "^3.5", "squizlabs/php_codesniffer": "^3.5",
"tecnickcom/tcpdf": "^6.3" "tecnickcom/tcpdf": "^6.3"
}, },

838
composer.lock generated
View File

@ -4,7 +4,7 @@
"Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies", "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
"This file is @generated automatically" "This file is @generated automatically"
], ],
"content-hash": "955c4a84deddf2db043a5c2faabbb66f", "content-hash": "209605c0b9329968170279f40db65d22",
"packages": [ "packages": [
{ {
"name": "maennchen/zipstream-php", "name": "maennchen/zipstream-php",
@ -65,12 +65,6 @@
"stream", "stream",
"zip" "zip"
], ],
"funding": [
{
"url": "https://opencollective.com/zipstream",
"type": "open_collective"
}
],
"time": "2020-05-30T13:11:16+00:00" "time": "2020-05-30T13:11:16+00:00"
}, },
{ {
@ -483,6 +477,242 @@
], ],
"time": "2017-10-23T01:57:42+00:00" "time": "2017-10-23T01:57:42+00:00"
}, },
{
"name": "symfony/polyfill-iconv",
"version": "v1.20.0",
"source": {
"type": "git",
"url": "https://github.com/symfony/polyfill-iconv.git",
"reference": "c536646fdb4f29104dd26effc2fdcb9a5b085024"
},
"dist": {
"type": "zip",
"url": "https://api.github.com/repos/symfony/polyfill-iconv/zipball/c536646fdb4f29104dd26effc2fdcb9a5b085024",
"reference": "c536646fdb4f29104dd26effc2fdcb9a5b085024",
"shasum": ""
},
"require": {
"php": ">=7.1"
},
"suggest": {
"ext-iconv": "For best performance"
},
"type": "library",
"extra": {
"branch-alias": {
"dev-main": "1.20-dev"
},
"thanks": {
"name": "symfony/polyfill",
"url": "https://github.com/symfony/polyfill"
}
},
"autoload": {
"psr-4": {
"Symfony\\Polyfill\\Iconv\\": ""
},
"files": [
"bootstrap.php"
]
},
"notification-url": "https://packagist.org/downloads/",
"license": [
"MIT"
],
"authors": [
{
"name": "Nicolas Grekas",
"email": "p@tchwork.com"
},
{
"name": "Symfony Community",
"homepage": "https://symfony.com/contributors"
}
],
"description": "Symfony polyfill for the Iconv extension",
"homepage": "https://symfony.com",
"keywords": [
"compatibility",
"iconv",
"polyfill",
"portable",
"shim"
],
"funding": [
{
"url": "https://symfony.com/sponsor",
"type": "custom"
},
{
"url": "https://github.com/fabpot",
"type": "github"
},
{
"url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
"type": "tidelift"
}
],
"time": "2020-10-23T14:02:19+00:00"
},
{
"name": "symfony/polyfill-intl-grapheme",
"version": "v1.18.1",
"source": {
"type": "git",
"url": "https://github.com/symfony/polyfill-intl-grapheme.git",
"reference": "b740103edbdcc39602239ee8860f0f45a8eb9aa5"
},
"dist": {
"type": "zip",
"url": "https://api.github.com/repos/symfony/polyfill-intl-grapheme/zipball/b740103edbdcc39602239ee8860f0f45a8eb9aa5",
"reference": "b740103edbdcc39602239ee8860f0f45a8eb9aa5",
"shasum": ""
},
"require": {
"php": ">=5.3.3"
},
"suggest": {
"ext-intl": "For best performance"
},
"type": "library",
"extra": {
"branch-alias": {
"dev-master": "1.18-dev"
},
"thanks": {
"name": "symfony/polyfill",
"url": "https://github.com/symfony/polyfill"
}
},
"autoload": {
"psr-4": {
"Symfony\\Polyfill\\Intl\\Grapheme\\": ""
},
"files": [
"bootstrap.php"
]
},
"notification-url": "https://packagist.org/downloads/",
"license": [
"MIT"
],
"authors": [
{
"name": "Nicolas Grekas",
"email": "p@tchwork.com"
},
{
"name": "Symfony Community",
"homepage": "https://symfony.com/contributors"
}
],
"description": "Symfony polyfill for intl's grapheme_* functions",
"homepage": "https://symfony.com",
"keywords": [
"compatibility",
"grapheme",
"intl",
"polyfill",
"portable",
"shim"
],
"funding": [
{
"url": "https://symfony.com/sponsor",
"type": "custom"
},
{
"url": "https://github.com/fabpot",
"type": "github"
},
{
"url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
"type": "tidelift"
}
],
"time": "2020-07-14T12:35:20+00:00"
},
{
"name": "symfony/polyfill-intl-normalizer",
"version": "v1.18.1",
"source": {
"type": "git",
"url": "https://github.com/symfony/polyfill-intl-normalizer.git",
"reference": "37078a8dd4a2a1e9ab0231af7c6cb671b2ed5a7e"
},
"dist": {
"type": "zip",
"url": "https://api.github.com/repos/symfony/polyfill-intl-normalizer/zipball/37078a8dd4a2a1e9ab0231af7c6cb671b2ed5a7e",
"reference": "37078a8dd4a2a1e9ab0231af7c6cb671b2ed5a7e",
"shasum": ""
},
"require": {
"php": ">=5.3.3"
},
"suggest": {
"ext-intl": "For best performance"
},
"type": "library",
"extra": {
"branch-alias": {
"dev-master": "1.18-dev"
},
"thanks": {
"name": "symfony/polyfill",
"url": "https://github.com/symfony/polyfill"
}
},
"autoload": {
"psr-4": {
"Symfony\\Polyfill\\Intl\\Normalizer\\": ""
},
"files": [
"bootstrap.php"
],
"classmap": [
"Resources/stubs"
]
},
"notification-url": "https://packagist.org/downloads/",
"license": [
"MIT"
],
"authors": [
{
"name": "Nicolas Grekas",
"email": "p@tchwork.com"
},
{
"name": "Symfony Community",
"homepage": "https://symfony.com/contributors"
}
],
"description": "Symfony polyfill for intl's Normalizer class and related functions",
"homepage": "https://symfony.com",
"keywords": [
"compatibility",
"intl",
"normalizer",
"polyfill",
"portable",
"shim"
],
"funding": [
{
"url": "https://symfony.com/sponsor",
"type": "custom"
},
{
"url": "https://github.com/fabpot",
"type": "github"
},
{
"url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
"type": "tidelift"
}
],
"time": "2020-07-14T12:35:20+00:00"
},
{ {
"name": "symfony/polyfill-mbstring", "name": "symfony/polyfill-mbstring",
"version": "v1.18.1", "version": "v1.18.1",
@ -559,6 +789,323 @@
} }
], ],
"time": "2020-07-14T12:35:20+00:00" "time": "2020-07-14T12:35:20+00:00"
},
{
"name": "symfony/polyfill-php72",
"version": "v1.18.1",
"source": {
"type": "git",
"url": "https://github.com/symfony/polyfill-php72.git",
"reference": "639447d008615574653fb3bc60d1986d7172eaae"
},
"dist": {
"type": "zip",
"url": "https://api.github.com/repos/symfony/polyfill-php72/zipball/639447d008615574653fb3bc60d1986d7172eaae",
"reference": "639447d008615574653fb3bc60d1986d7172eaae",
"shasum": ""
},
"require": {
"php": ">=5.3.3"
},
"type": "library",
"extra": {
"branch-alias": {
"dev-master": "1.18-dev"
},
"thanks": {
"name": "symfony/polyfill",
"url": "https://github.com/symfony/polyfill"
}
},
"autoload": {
"psr-4": {
"Symfony\\Polyfill\\Php72\\": ""
},
"files": [
"bootstrap.php"
]
},
"notification-url": "https://packagist.org/downloads/",
"license": [
"MIT"
],
"authors": [
{
"name": "Nicolas Grekas",
"email": "p@tchwork.com"
},
{
"name": "Symfony Community",
"homepage": "https://symfony.com/contributors"
}
],
"description": "Symfony polyfill backporting some PHP 7.2+ features to lower PHP versions",
"homepage": "https://symfony.com",
"keywords": [
"compatibility",
"polyfill",
"portable",
"shim"
],
"funding": [
{
"url": "https://symfony.com/sponsor",
"type": "custom"
},
{
"url": "https://github.com/fabpot",
"type": "github"
},
{
"url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
"type": "tidelift"
}
],
"time": "2020-07-14T12:35:20+00:00"
},
{
"name": "voku/anti-xss",
"version": "4.1.30",
"source": {
"type": "git",
"url": "https://github.com/voku/anti-xss.git",
"reference": "ff6e54f4a98ad1cd28f8b4a0f3c3f92f3c421f0a"
},
"dist": {
"type": "zip",
"url": "https://api.github.com/repos/voku/anti-xss/zipball/ff6e54f4a98ad1cd28f8b4a0f3c3f92f3c421f0a",
"reference": "ff6e54f4a98ad1cd28f8b4a0f3c3f92f3c421f0a",
"shasum": ""
},
"require": {
"php": ">=7.0.0",
"voku/portable-utf8": "~5.4.50"
},
"require-dev": {
"phpunit/phpunit": "~6.0 || ~7.0 || ~9.0"
},
"type": "library",
"extra": {
"branch-alias": {
"dev-master": "4.1.x-dev"
}
},
"autoload": {
"psr-4": {
"voku\\helper\\": "src/voku/helper/"
}
},
"notification-url": "https://packagist.org/downloads/",
"license": [
"MIT"
],
"authors": [
{
"name": "EllisLab Dev Team",
"homepage": "http://ellislab.com/"
},
{
"name": "Lars Moelleken",
"email": "lars@moelleken.org",
"homepage": "http://www.moelleken.org/"
}
],
"description": "anti xss-library",
"homepage": "https://github.com/voku/anti-xss",
"keywords": [
"anti-xss",
"clean",
"security",
"xss"
],
"funding": [
{
"url": "https://www.paypal.me/moelleken",
"type": "custom"
},
{
"url": "https://github.com/voku",
"type": "github"
},
{
"url": "https://opencollective.com/anti-xss",
"type": "open_collective"
},
{
"url": "https://www.patreon.com/voku",
"type": "patreon"
},
{
"url": "https://tidelift.com/funding/github/packagist/voku/anti-xss",
"type": "tidelift"
}
],
"time": "2020-11-12T00:30:57+00:00"
},
{
"name": "voku/portable-ascii",
"version": "1.5.6",
"source": {
"type": "git",
"url": "https://github.com/voku/portable-ascii.git",
"reference": "80953678b19901e5165c56752d087fc11526017c"
},
"dist": {
"type": "zip",
"url": "https://api.github.com/repos/voku/portable-ascii/zipball/80953678b19901e5165c56752d087fc11526017c",
"reference": "80953678b19901e5165c56752d087fc11526017c",
"shasum": ""
},
"require": {
"php": ">=7.0.0"
},
"require-dev": {
"phpunit/phpunit": "~6.0 || ~7.0 || ~9.0"
},
"suggest": {
"ext-intl": "Use Intl for transliterator_transliterate() support"
},
"type": "library",
"autoload": {
"psr-4": {
"voku\\": "src/voku/"
}
},
"notification-url": "https://packagist.org/downloads/",
"license": [
"MIT"
],
"authors": [
{
"name": "Lars Moelleken",
"homepage": "http://www.moelleken.org/"
}
],
"description": "Portable ASCII library - performance optimized (ascii) string functions for php.",
"homepage": "https://github.com/voku/portable-ascii",
"keywords": [
"ascii",
"clean",
"php"
],
"funding": [
{
"url": "https://www.paypal.me/moelleken",
"type": "custom"
},
{
"url": "https://github.com/voku",
"type": "github"
},
{
"url": "https://opencollective.com/portable-ascii",
"type": "open_collective"
},
{
"url": "https://www.patreon.com/voku",
"type": "patreon"
},
{
"url": "https://tidelift.com/funding/github/packagist/voku/portable-ascii",
"type": "tidelift"
}
],
"time": "2020-11-12T00:07:28+00:00"
},
{
"name": "voku/portable-utf8",
"version": "5.4.50",
"source": {
"type": "git",
"url": "https://github.com/voku/portable-utf8.git",
"reference": "f14ed68ea9ced6639e71ca989c6d907892115ba0"
},
"dist": {
"type": "zip",
"url": "https://api.github.com/repos/voku/portable-utf8/zipball/f14ed68ea9ced6639e71ca989c6d907892115ba0",
"reference": "f14ed68ea9ced6639e71ca989c6d907892115ba0",
"shasum": ""
},
"require": {
"php": ">=7.0.0",
"symfony/polyfill-iconv": "~1.0",
"symfony/polyfill-intl-grapheme": "~1.0",
"symfony/polyfill-intl-normalizer": "~1.0",
"symfony/polyfill-mbstring": "~1.0",
"symfony/polyfill-php72": "~1.0",
"voku/portable-ascii": "~1.5.6"
},
"require-dev": {
"phpunit/phpunit": "~6.0 || ~7.0 || ~9.0"
},
"suggest": {
"ext-ctype": "Use Ctype for e.g. hexadecimal digit detection",
"ext-fileinfo": "Use Fileinfo for better binary file detection",
"ext-iconv": "Use iconv for best performance",
"ext-intl": "Use Intl for best performance",
"ext-json": "Use JSON for string detection",
"ext-mbstring": "Use Mbstring for best performance"
},
"type": "library",
"autoload": {
"psr-4": {
"voku\\": "src/voku/"
},
"files": [
"bootstrap.php"
]
},
"notification-url": "https://packagist.org/downloads/",
"license": [
"(Apache-2.0 or GPL-2.0)"
],
"authors": [
{
"name": "Nicolas Grekas",
"email": "p@tchwork.com"
},
{
"name": "Hamid Sarfraz",
"homepage": "http://pageconfig.com/"
},
{
"name": "Lars Moelleken",
"homepage": "http://www.moelleken.org/"
}
],
"description": "Portable UTF-8 library - performance optimized (unicode) string functions for php.",
"homepage": "https://github.com/voku/portable-utf8",
"keywords": [
"UTF",
"clean",
"php",
"unicode",
"utf-8",
"utf8"
],
"funding": [
{
"url": "https://www.paypal.me/moelleken",
"type": "custom"
},
{
"url": "https://github.com/voku",
"type": "github"
},
{
"url": "https://opencollective.com/portable-utf8",
"type": "open_collective"
},
{
"url": "https://www.patreon.com/voku",
"type": "patreon"
},
{
"url": "https://tidelift.com/funding/github/packagist/voku/portable-utf8",
"type": "tidelift"
}
],
"time": "2020-11-12T00:17:47+00:00"
} }
], ],
"packages-dev": [ "packages-dev": [
@ -819,20 +1366,6 @@
"constructor", "constructor",
"instantiate" "instantiate"
], ],
"funding": [
{
"url": "https://www.doctrine-project.org/sponsorship.html",
"type": "custom"
},
{
"url": "https://www.patreon.com/phpdoctrine",
"type": "patreon"
},
{
"url": "https://tidelift.com/funding/github/packagist/doctrine%2Finstantiator",
"type": "tidelift"
}
],
"time": "2020-05-29T17:27:14+00:00" "time": "2020-05-29T17:27:14+00:00"
}, },
{ {
@ -895,20 +1428,6 @@
"parser", "parser",
"php" "php"
], ],
"funding": [
{
"url": "https://www.doctrine-project.org/sponsorship.html",
"type": "custom"
},
{
"url": "https://www.patreon.com/phpdoctrine",
"type": "patreon"
},
{
"url": "https://tidelift.com/funding/github/packagist/doctrine%2Flexer",
"type": "tidelift"
}
],
"time": "2020-05-25T17:44:05+00:00" "time": "2020-05-25T17:44:05+00:00"
}, },
{ {
@ -1068,12 +1587,6 @@
} }
], ],
"description": "A tool to automatically fix PHP code style", "description": "A tool to automatically fix PHP code style",
"funding": [
{
"url": "https://github.com/keradus",
"type": "github"
}
],
"time": "2020-06-27T23:57:46+00:00" "time": "2020-06-27T23:57:46+00:00"
}, },
{ {
@ -2038,7 +2551,6 @@
"keywords": [ "keywords": [
"tokenizer" "tokenizer"
], ],
"abandoned": true,
"time": "2019-09-17T06:23:10+00:00" "time": "2019-09-17T06:23:10+00:00"
}, },
{ {
@ -2122,16 +2634,6 @@
"testing", "testing",
"xunit" "xunit"
], ],
"funding": [
{
"url": "https://phpunit.de/donate.html",
"type": "custom"
},
{
"url": "https://github.com/sebastianbergmann",
"type": "github"
}
],
"time": "2020-06-22T07:06:58+00:00" "time": "2020-06-22T07:06:58+00:00"
}, },
{ {
@ -3648,165 +4150,6 @@
], ],
"time": "2020-07-14T12:35:20+00:00" "time": "2020-07-14T12:35:20+00:00"
}, },
{
"name": "symfony/polyfill-intl-grapheme",
"version": "v1.18.1",
"source": {
"type": "git",
"url": "https://github.com/symfony/polyfill-intl-grapheme.git",
"reference": "b740103edbdcc39602239ee8860f0f45a8eb9aa5"
},
"dist": {
"type": "zip",
"url": "https://api.github.com/repos/symfony/polyfill-intl-grapheme/zipball/b740103edbdcc39602239ee8860f0f45a8eb9aa5",
"reference": "b740103edbdcc39602239ee8860f0f45a8eb9aa5",
"shasum": ""
},
"require": {
"php": ">=5.3.3"
},
"suggest": {
"ext-intl": "For best performance"
},
"type": "library",
"extra": {
"branch-alias": {
"dev-master": "1.18-dev"
},
"thanks": {
"name": "symfony/polyfill",
"url": "https://github.com/symfony/polyfill"
}
},
"autoload": {
"psr-4": {
"Symfony\\Polyfill\\Intl\\Grapheme\\": ""
},
"files": [
"bootstrap.php"
]
},
"notification-url": "https://packagist.org/downloads/",
"license": [
"MIT"
],
"authors": [
{
"name": "Nicolas Grekas",
"email": "p@tchwork.com"
},
{
"name": "Symfony Community",
"homepage": "https://symfony.com/contributors"
}
],
"description": "Symfony polyfill for intl's grapheme_* functions",
"homepage": "https://symfony.com",
"keywords": [
"compatibility",
"grapheme",
"intl",
"polyfill",
"portable",
"shim"
],
"funding": [
{
"url": "https://symfony.com/sponsor",
"type": "custom"
},
{
"url": "https://github.com/fabpot",
"type": "github"
},
{
"url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
"type": "tidelift"
}
],
"time": "2020-07-14T12:35:20+00:00"
},
{
"name": "symfony/polyfill-intl-normalizer",
"version": "v1.18.1",
"source": {
"type": "git",
"url": "https://github.com/symfony/polyfill-intl-normalizer.git",
"reference": "37078a8dd4a2a1e9ab0231af7c6cb671b2ed5a7e"
},
"dist": {
"type": "zip",
"url": "https://api.github.com/repos/symfony/polyfill-intl-normalizer/zipball/37078a8dd4a2a1e9ab0231af7c6cb671b2ed5a7e",
"reference": "37078a8dd4a2a1e9ab0231af7c6cb671b2ed5a7e",
"shasum": ""
},
"require": {
"php": ">=5.3.3"
},
"suggest": {
"ext-intl": "For best performance"
},
"type": "library",
"extra": {
"branch-alias": {
"dev-master": "1.18-dev"
},
"thanks": {
"name": "symfony/polyfill",
"url": "https://github.com/symfony/polyfill"
}
},
"autoload": {
"psr-4": {
"Symfony\\Polyfill\\Intl\\Normalizer\\": ""
},
"files": [
"bootstrap.php"
],
"classmap": [
"Resources/stubs"
]
},
"notification-url": "https://packagist.org/downloads/",
"license": [
"MIT"
],
"authors": [
{
"name": "Nicolas Grekas",
"email": "p@tchwork.com"
},
{
"name": "Symfony Community",
"homepage": "https://symfony.com/contributors"
}
],
"description": "Symfony polyfill for intl's Normalizer class and related functions",
"homepage": "https://symfony.com",
"keywords": [
"compatibility",
"intl",
"normalizer",
"polyfill",
"portable",
"shim"
],
"funding": [
{
"url": "https://symfony.com/sponsor",
"type": "custom"
},
{
"url": "https://github.com/fabpot",
"type": "github"
},
{
"url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
"type": "tidelift"
}
],
"time": "2020-07-14T12:35:20+00:00"
},
{ {
"name": "symfony/polyfill-php70", "name": "symfony/polyfill-php70",
"version": "v1.18.1", "version": "v1.18.1",
@ -3884,79 +4227,6 @@
], ],
"time": "2020-07-14T12:35:20+00:00" "time": "2020-07-14T12:35:20+00:00"
}, },
{
"name": "symfony/polyfill-php72",
"version": "v1.18.1",
"source": {
"type": "git",
"url": "https://github.com/symfony/polyfill-php72.git",
"reference": "639447d008615574653fb3bc60d1986d7172eaae"
},
"dist": {
"type": "zip",
"url": "https://api.github.com/repos/symfony/polyfill-php72/zipball/639447d008615574653fb3bc60d1986d7172eaae",
"reference": "639447d008615574653fb3bc60d1986d7172eaae",
"shasum": ""
},
"require": {
"php": ">=5.3.3"
},
"type": "library",
"extra": {
"branch-alias": {
"dev-master": "1.18-dev"
},
"thanks": {
"name": "symfony/polyfill",
"url": "https://github.com/symfony/polyfill"
}
},
"autoload": {
"psr-4": {
"Symfony\\Polyfill\\Php72\\": ""
},
"files": [
"bootstrap.php"
]
},
"notification-url": "https://packagist.org/downloads/",
"license": [
"MIT"
],
"authors": [
{
"name": "Nicolas Grekas",
"email": "p@tchwork.com"
},
{
"name": "Symfony Community",
"homepage": "https://symfony.com/contributors"
}
],
"description": "Symfony polyfill backporting some PHP 7.2+ features to lower PHP versions",
"homepage": "https://symfony.com",
"keywords": [
"compatibility",
"polyfill",
"portable",
"shim"
],
"funding": [
{
"url": "https://symfony.com/sponsor",
"type": "custom"
},
{
"url": "https://github.com/fabpot",
"type": "github"
},
{
"url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
"type": "tidelift"
}
],
"time": "2020-07-14T12:35:20+00:00"
},
{ {
"name": "symfony/polyfill-php73", "name": "symfony/polyfill-php73",
"version": "v1.18.1", "version": "v1.18.1",

View File

@ -23,6 +23,7 @@ use PhpOffice\PhpSpreadsheet\Style\Style;
use PhpOffice\PhpSpreadsheet\Worksheet\Drawing; use PhpOffice\PhpSpreadsheet\Worksheet\Drawing;
use PhpOffice\PhpSpreadsheet\Worksheet\MemoryDrawing; use PhpOffice\PhpSpreadsheet\Worksheet\MemoryDrawing;
use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet; use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
use voku\helper\AntiXSS;
class Html extends BaseWriter class Html extends BaseWriter
{ {
@ -1788,10 +1789,14 @@ class Html extends BaseWriter
{ {
$result = ''; $result = '';
if (!$this->isPdf && isset($pSheet->getComments()[$coordinate])) { if (!$this->isPdf && isset($pSheet->getComments()[$coordinate])) {
$sanitizer = new AntiXSS();
$sanitizedString = $sanitizer->xss_clean($pSheet->getComment($coordinate)->getText()->getPlainText());
if (!$sanitizer->isXssFound()) {
$result .= '<a class="comment-indicator"></a>'; $result .= '<a class="comment-indicator"></a>';
$result .= '<div class="comment">' . nl2br($pSheet->getComment($coordinate)->getText()->getPlainText()) . '</div>'; $result .= '<div class="comment">' . nl2br($sanitizedString) . '</div>';
$result .= PHP_EOL; $result .= PHP_EOL;
} }
}
return $result; return $result;
} }

View File

@ -0,0 +1,49 @@
<?php
namespace PhpOffice\PhpSpreadsheetTests\Writer\Html;
use PhpOffice\PhpSpreadsheet\IOFactory;
use PhpOffice\PhpSpreadsheet\RichText\RichText;
use PhpOffice\PhpSpreadsheet\Shared\File;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheetTests\Functional;
class XssVulnerabilityTest extends Functional\AbstractFunctional
{
public function providerXssRichText()
{
return [
'script tag' => ['<script>alert(1)</script>'],
'javascript tag' => ['javascript:alert(1)'],
'with unicode' => ['java\u0003script:alert(1)'],
];
}
/**
* @dataProvider providerXssRichText
*
* @param string $xssTextString
*/
public function testXssInComment($xssTextString): void
{
$spreadsheet = new Spreadsheet();
$richText = new RichText();
$richText->createText($xssTextString);
$spreadsheet->getActiveSheet()->getCell('A1')->setValue('XSS Test');
$spreadsheet->getActiveSheet()
->getComment('A1')
->setText($richText);
$filename = tempnam(File::sysGetTempDir(), 'phpspreadsheet-test');
$writer = IOFactory::createWriter($spreadsheet, 'Html');
$writer->save($filename);
$verify = file_get_contents($filename);
// Ensure that executable js has been stripped from the comments
self::assertStringNotContainsString($xssTextString, $verify);
}
}