CVE-2026-31873

Unhead is a document head and template manager. Prior to 2.1.11, The link.href check in makeTagSafe safe.ts uses String.includes, which is case-sensitive. Browsers treat URI schemes case-insensitively. DATA:text/css,... is the same as data:text/css,... to the browser, but 'DATA:...'.includes'data...

CVE-2026-31873

Unhead suffers a bypass of URI scheme sanitization in makeTagSafe prior to version 2.1.11: the code checks href values with String.includes(), which is case-sensitive. Since browsers treat URI schemes case-insensitively, inputs like DATA:text/css,... can evade the check and allow arbitrary CSS vi...

CVE-2026-28348

lxmlhtmlclean is a project for HTML cleaning functionalities copied from lxml.html.clean. Prior to version 0.4.4, the hassneakyjavascript method strips backslashes before checking for dangerous CSS keywords. This causes CSS Unicode escape sequences to bypass the @import and expression filters,...

darkreader 安全漏洞

DarkReader is an open-source web dark mode browser extension developed by Dark Reader. Versions of DarkReader prior to 4.9.117 contained a security vulnerability, which was caused by improper cross-source style sheet handling. This vulnerability could allow access to style sheets on the local...

CVE-2026-2027

CVE-2026-2027 concerns the AMP Enhancer – Compatibility Layer for Official AMP Plugin (WordPress). Affected: AMP Enhancer, all versions up to and including 1.0.49. Root cause: insufficient input sanitization and output escaping on AMP Custom CSS attributes. Impact: Stored Cross-Site Scripting (XS...

MGASA-2026-0036 Updated thunderbird packages fix security vulnerability

CSS-based exfiltration of the content from partially encrypted emails when allowing remote content. CVE-2026-0818...

CVE-2025-67484

MediaWiki vulnerability CVE-2025-67484 affects MediaWiki versions before 1.39.16, 1.43.6, 1.44.3, and 1.45.1. The issue is tied to the Action API xslt option, enabling JavaScript execution by administrators who are not interface administrators; the xslt option is now disabled by default and can b...

CVE-2025-57785

A Double Free in XSLT showindex has been identified in Hiawatha webserver version 11.7 which allows an unauthenticated attacker to corrupt data which may lead to arbitrary code execution...

CVE-2025-57785

CVE-2025-57785 — Double Free in XSLT show_index (Hiawatha Webserver) Affected software: Hiawatha webserver versions 10.8.2 through 11.7 (as cited by Red Hat and CVE trackers). Technical detail: The vulnerability is a double free in the XSLT function show_index, a memory management error that may ...

EUVD-2025-206341

A Double Free in XSLT showindex has been identified in Hiawatha webserver version 11.7 which allows an unauthenticated attacker to corrupt data which may lead to arbitrary code execution...

CVE-2025-57785

A Double Free in XSLT showindex has been identified in Hiawatha webserver version 11.7 which allows an unauthenticated attacker to corrupt data which may lead to arbitrary code execution...

PT-2026-4798

Name of the Vulnerable Software and Affected Versions Hiawatha version 11.7 Description A double free issue exists in the XSLT show index function of the Hiawatha webserver. This allows an unauthenticated attacker to corrupt data, potentially leading to arbitrary code execution. The issue involve...

[SECURITY] Fedora 42 Update: mingw-libxslt-1.1.43-4.fc42

This C library allows to transform XML files into other XML files or HTML, text, ... using the standard XSLT stylesheet transformation mechanism. To use it you need to have a version of libxml2 =3D 2.6.27 installed. The xsltproc command is a command line interface to the XSLT engine...

Cross-site Scripting (XSS)

october/system is vulnerable to Cross-site Scripting XSS. The vulnerability is due to improper input sanitization in backend configuration stylesheet fields, which allows an attacker with backend customization privileges to inject malicious HTML or JavaScript and execute arbitrary scripts across...

CVE-2025-41768

An high privileged remote attacker can inject arbitrary content into the custom CSS field on the affected devices due to improper neutralization of input during web page generation 'Cross-site Scripting'...

MiracleLinux 7 : firefox-91.11.0-2.0.1.el7.AXS7 (AXSA:2022-3440:15)

The remote MiracleLinux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2022-3440:15 advisory. Mozilla: CSP sandbox header without allow-scripts can be bypassed via retargeted javascript: URI CVE-2022-34468 Mozilla: Use-after-free in nsSHistor...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the inlineRemoteCSS function during the HTML email analysis process. An attacker can cause the server to make arbitrary HTTP requests to external resources by supplying crafted HTML emails containing...

MiracleLinux 3 : libxslt-1.1.17-4.3.0.1.AXS3 (AXSA:2012-927:01)

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2012-927:01 advisory. This C library allows to transform XML files into other XML files or HTML, text, ... using the standard XSLT stylesheet transformation mechanism. To...

CVE-2025-61676

October is a Content Management System CMS and web platform. Prior to versions 3.7.13 and 4.0.12, a cross-site scripting XSS vulnerabilities was identified in October CMS backend configuration forms. A user with the Customize Backend Styles permission could inject malicious HTML/JS into the...

CVE-2025-61674

CVE-2025-61674 concerns October CMS. An XSS vulnerability exists in backend configuration forms where a user with Global Editor Settings can inject HTML/JS into the Markup Styles stylesheet input. A crafted input can escape the context, enabling arbitrary script execution on backend pages for al...