UBUNTU-CVE-2026-41305

PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Versions prior to 8.5.10 do not escape sequences when stringifying CSS ASTs. When user-submitted CSS is parsed and re-stringified for embedding in HTML tags, in CSS...

CVE-2026-41305

PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Versions prior to 8.5.10 do not escape tags,...

CVE-2026-41305

PostCSS (driver: CSS AST stringify) has an XSS risk in versions prior to 8.5.10 due to unescaped sequences when embedding user CSS into HTML tags. The issue arises when CSS is parsed into an AST and then re-stringified for embedding. Version 8.5.10 fixes the problem. Affected products: PostCSS;...

CVE-2026-41305 PostCSS has XSS via Unescaped </style> in its CSS Stringify Output

PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Versions prior to 8.5.10 do not escape sequences when stringifying CSS ASTs. When user-submitted CSS is parsed and re-stringified for embedding in HTML tags, in CSS...

CVE-2026-41305 PostCSS has XSS via Unescaped </style> in its CSS Stringify Output

PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Versions prior to 8.5.10 do not escape sequences when stringifying CSS ASTs. When user-submitted CSS is parsed and re-stringified for embedding in HTML tags, in CSS...

EUVD-2026-25383

PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Versions prior to 8.5.10 do not escape sequences when stringifying CSS ASTs. When user-submitted CSS is parsed and re-stringified for embedding in HTML tags, in CSS...

CVE-2026-41305 PostCSS has XSS via Unescaped </style> in its CSS Stringify Output

PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Versions prior to 8.5.10 do not escape sequences when stringifying CSS ASTs. When user-submitted CSS is parsed and re-stringified for embedding in HTML tags, in CSS...

CVE-2026-41305

PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Versions prior to 8.5.10 do not escape sequences when stringifying CSS ASTs. When user-submitted CSS is parsed and re-stringified for embedding in HTML tags, in CSS...

PostCSS 跨站脚本漏洞

PostCSS is an open-source style transformation tool developed by PostCSS. Versions of PostCSS prior to 8.5.10 contained a cross-site scripting vulnerability. This vulnerability stemmed from the lack of escaping of the sequence during CSS stringification using the CSS AST. As a result, when the...

PT-2026-34839

Name of the Vulnerable Software and Affected Versions PostCSS versions prior to 8.5.10 Description PostCSS transforms CSS files into an Abstract Syntax Tree AST to analyze and modify rules. The software fails to escape sequences when stringifying CSS ASTs. If user-submitted CSS is parsed and then...

CVE-2026-41305

PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Versions prior to 8.5.10 do not escape sequences when stringifying CSS ASTs. When user-submitted CSS is parsed and re-stringified for embedding in HTML tags, in CSS...

EUVD-2026-22865

The WM JqMath plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'style' shortcode attribute of the jqmath shortcode in all versions up to and including 1.3. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. The...

Infinite loop

Overview justhtml is an A pure Python HTML5 parser that just works. Affected versions of this package are vulnerable to Infinite loop via custom sanitization policies or programmatic DOM manipulation. An attacker can inject and execute arbitrary scripts, cause resource loading, or trigger externa...

justhtml has sanitization bypass in custom policies and programmatic DOM

Summary justhtml 1.17.0 fixes multiple security issues in sanitization, serialization, and programmatic DOM handling. Most of these issues affected advanced or custom configurations rather than the default safe path. Affected versions - justhtml , MathML , SVG / , and MathML text integration poin...

Cross-site Scripting (XSS)

Overview @marko/runtime-tags is an Optimized runtime for Marko templates. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the handling of interpolated values within or tags due to improper case-insensitive detection of closing tags. An attacker can execute arbitrar...

Cross-site Scripting (XSS)

Overview marko is an UI Components + streaming, async, high performance, HTML templating for Node.js and the browser. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the handling of interpolated values within or tags due to improper case-insensitive detection of...

Marko: XSS via case-insensitive script/style closing tag bypass in runtime HTML escaping

Summary When dynamic text is interpolated into a or tag the Marko runtime failed to prevent tag breakout when the closing tag used non-lowercase casing. An attacker able to place input inside a or block could break out of the tag with , , etc. and inject arbitrary HTML/JavaScript, resulting in...

GHSA-X9FJ-57FH-C8WQ Marko: XSS via case-insensitive script/style closing tag bypass in runtime HTML escaping

Summary When dynamic text is interpolated into a or tag the Marko runtime failed to prevent tag breakout when the closing tag used non-lowercase casing. An attacker able to place input inside a or block could break out of the tag with , , etc. and inject arbitrary HTML/JavaScript, resulting in...

EUVD-2026-24955

A flaw was found in GNU Emacs. This vulnerability, a memory corruption issue, occurs when Emacs processes specially crafted SVG Scalable Vector Graphics CSS Cascading Style Sheets data. A local user could exploit this by convincing a victim to open a malicious SVG file, which may lead to a denial...

CVE-2026-6861

A flaw was found in GNU Emacs. This vulnerability, a memory corruption issue, occurs when Emacs processes specially crafted SVG Scalable Vector Graphics CSS Cascading Style Sheets data. A local user could exploit this by convincing a victim to open a malicious SVG file, which may lead to a denial...