PYSEC-2026-2033 WeasyPrint allows the attachment of arbitrary files and URLs to a PDF

Impact Since version 61.0, there's a vulnerability which allows attaching content of arbitrary files and URLs to a generated PDF document, even if urlfetcher is configured to prevent access to files and URLs. Patches Fixed by 734ee8e that’s included in 61.2 Workarounds - Check that no PDF...

CVE-2026-49452

creationtimestamp| type| source ---|---|--- 2026-07-06 18:35:11+00:00| published-proof-of-concept| https://github.com/Kozea/WeasyPrint/security/advisories/GHSA-jhhc-3hcp-qhm5...

GHSA-JHHC-3HCP-QHM5 WeasyPrint has CSS Injection via Presentational Hints

Summary A CSS injection issue exists in WeasyPrint when HTML presentational hints are enabled. Unescaped attribute values are embedded into CSS, allowing injection of arbitrary CSS declarations. This affects applications processing untrusted HTML input. Details File: weasyprint/css/init.py The...

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Overview weasyprint is a The Awesome Document Factory Affected versions of this package are vulnerable to Improper Neutralization of Special Elements in Output Used by a Downstream Component 'Injection' in the processing of presentational hints when unescaped attribute values are embedded into CS...

WeasyPrint has CSS Injection via Presentational Hints

Summary A CSS injection issue exists in WeasyPrint when HTML presentational hints are enabled. Unescaped attribute values are embedded into CSS, allowing injection of arbitrary CSS declarations. This affects applications processing untrusted HTML input. Details File: weasyprint/css/init.py The...

CVE-2026-49358

creationtimestamp| type| source ---|---|--- 2026-06-27 00:35:52+00:00| published-proof-of-concept| https://github.com/pontedilana/php-weasyprint/security/advisories/GHSA-5g9f-cwwg-4p8g...

CVE-2026-49359

creationtimestamp| type| source ---|---|--- 2026-06-26 22:28:37+00:00| seen| https://bsky.app/profile/suriq.io/post/3mp7ykmyves2b 2026-06-27 00:35:49+00:00| published-proof-of-concept| https://github.com/pontedilana/php-weasyprint/security/advisories/GHSA-x8g9-h984-pc36...

PhpWeasyPrint vulnerable to SSRF and local file disclosure via the attachment option

Summary pontedilana/php-weasyprint fetches the content of option values server-side via filegetcontents when the value looks like a URL, without restricting the URL scheme. The attachment option of Pdf is the reachable sink: any value that passes isOptionUrl filtervar..., FILTERVALIDATEURL is...

PhpWeasyPrint vulnerable to arbitrary file deletion at shutdown via public $temporaryFiles

Summary AbstractGenerator::$temporaryFiles is a public array, and removeTemporaryFiles — invoked from destruct and from a registered shutdown function — calls unlink on every entry without verifying that the path is contained within the temporary folder. Any code holding a reference to a generato...

GHSA-5G9F-CWWG-4P8G PhpWeasyPrint vulnerable to arbitrary file deletion at shutdown via public $temporaryFiles

Summary AbstractGenerator::$temporaryFiles is a public array, and removeTemporaryFiles — invoked from destruct and from a registered shutdown function — calls unlink on every entry without verifying that the path is contained within the temporary folder. Any code holding a reference to a generato...

PhpWeasyPrint vulnerable to PHAR deserialization via output filename (CVE-2023-28115 case-insensitive bypass)

Summary pontedilana/php-weasyprint guarded the output filename against the phar:// stream wrapper with a case-sensitive blacklist: php if 0 === \strpos$filename, 'phar://' throw new \InvalidArgumentException'The output file cannot be a phar archive.'; PHP stream wrappers are case-insensitive, so...

GHSA-F5GC-QXF8-MH9G php-weasyprint: shell command injection via configurable WeasyPrint binary path due to inverted is_executable() guard (mirror of KnpLabs/snappy GHSA-vpr4-p6fq-85jc)

Summary pontedilana/php-weasyprint builds the shell command for WeasyPrint by passing the binary path through escapeshellarg first and then checking the quoted result with isexecutable. On POSIX escapeshellarg'/usr/local/bin/weasyprint' returns '/usr/local/bin/weasyprint' with the single-quote...

EUVD-2026-38048

php-weasyprint: shell command injection via configurable WeasyPrint binary path due to inverted isexecutable guard mirror of KnpLabs/snappy GHSA-vpr4-p6fq-85jc...

php-weasyprint: shell command injection via configurable WeasyPrint binary path due to inverted is_executable() guard (mirror of KnpLabs/snappy GHSA-vpr4-p6fq-85jc)

Summary pontedilana/php-weasyprint builds the shell command for WeasyPrint by passing the binary path through escapeshellarg first and then checking the quoted result with isexecutable. On POSIX escapeshellarg'/usr/local/bin/weasyprint' returns '/usr/local/bin/weasyprint' with the single-quote...

Deserialization of Untrusted Data

Overview pontedilana/php-weasyprint is a PHP library allowing PDF generation from an url or a html page. Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the prepareOutput method of src/AbstractGenerator.php, whose strpos$filename, 'phar://' guard is case...

Server-side Request Forgery (SSRF)

Overview pontedilana/php-weasyprint is a PHP library allowing PDF generation from an url or a html page. Affected versions of this package are vulnerable to Server-side Request Forgery SSRF and local file disclosure in the isOptionUrl and handleArrayOptions methods of src/Pdf.php, which validate...

CVE-2026-49359

PhpWeasyPrint is a PHP library allowing PDF generation from a URL or an HTML page. Prior to version 2.6.0, pontedilana/php-weasyprint fetches the content of option values server-side via filegetcontents when the value looks like a URL, without restricting the URL scheme. The attachment option of...

Command Injection

Overview pontedilana/php-weasyprint is a PHP library allowing PDF generation from an url or a html page. Affected versions of this package are vulnerable to Command Injection in the binary-path validation in src/AbstractGenerator.php, where isexecutable is tested against the escapeshellarg-quoted...

CVE-2026-49359

PhpWeasyPrint (pontedilana/php-weasyprint) prior to version 2.6.0 is vulnerable: the attachment option for Pdf can accept any value that passes filter_var(url), including http, https, ftp, file, and PHP streams like php://. The library fetches these values server-side via file_get_contents, allow...

CVE-2026-49286 PhpWeasyPrint vulnerable to PHAR deserialization via output filename (CVE-2023-28115 case-insensitive bypass)

PhpWeasyPrint is a PHP library allowing PDF generation from a URL or an HTML page. Prior to version 2.6.0, pontedilana/php-weasyprint guarded the output filename against the phar:// stream wrapper with a case-sensitive blacklist. PHP stream wrappers are case-insensitive, so PHAR://, Phar://, etc...