TYPO3 HTML Sanitizer allows Cross-site Scripting

Namespace attributes are not encoded correctly during HTML serialization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitizer before version 2.3.2. Credits to Doyensec in collaboration with Claude and Anthropic Research for reporting this vulnerability...

TYPO3 HTML Sanitizer allows Cross-site Scripting

When ALLOWINSECURERAWTEXT is enabled, whitespace-variant closing tags e.g., are not recognized by the sanitizer but accepted by browsers as valid end tags, allowing subsequent content to escape sanitization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitiz...

Security update for roundcubemail (important)

openSUSE Security Update: Security update for roundcubemail Announcement ID: openSUSE-SU-2026:0183-1 Rating: important References: 1266329 1266331 1266332 1266333 1266334 1266335 1266336 1266337 Cross-References: CVE-2026-48842 CVE-2026-48843 CVE-2026-48844 CVE-2026-48845 CVE-2026-48846...

CVE-2026-47345

Namespace attributes are not encoded correctly during HTML serialization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitizer before version 2.3.2...

CVE-2026-47344

When ALLOWINSECURERAWTEXT is enabled, whitespace-variant closing tags e.g., are not recognized by the sanitizer but accepted by browsers as valid end tags, allowing subsequent content to escape sanitization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitiz...

TYPO3-CORE-SA-2026-006: TYPO3 HTML Sanitizer allows Cross-Site Scripting

More info at https://typo3.org/security/advisory/typo3-core-sa-2026-006...

TYPO3-CORE-SA-2026-006: TYPO3 HTML Sanitizer allows Cross-Site Scripting

More info at https://typo3.org/security/advisory/typo3-core-sa-2026-006...

CVE-2026-47345

The CVE-2026-47345 issue affects the TYPO3 html-sanitizer component prior to version 2.3.2, where namespace attributes are not encoded correctly during HTML serialization, enabling bypass of the built-in XSS prevention. The underlying impact is a cross-site scripting risk in affected TYPO3 deploy...

CVE-2026-47345

Namespace attributes are not encoded correctly during HTML serialization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitizer before version 2.3.2...

CVE-2026-47345 TYPO3 HTML Sanitizer allows Cross-Site Scripting

Namespace attributes are not encoded correctly during HTML serialization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitizer before version 2.3.2...

CVE-2026-47345 TYPO3 HTML Sanitizer allows Cross-Site Scripting

Namespace attributes are not encoded correctly during HTML serialization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitizer before version 2.3.2...

CVE-2026-47344

When ALLOWINSECURERAWTEXT is enabled, whitespace-variant closing tags e.g., are not recognized by the sanitizer but accepted by browsers as valid end tags, allowing subsequent content to escape sanitization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitiz...

CVE-2026-47344 TYPO3 HTML Sanitizer allows Cross-Site Scripting

When ALLOWINSECURERAWTEXT is enabled, whitespace-variant closing tags e.g., are not recognized by the sanitizer but accepted by browsers as valid end tags, allowing subsequent content to escape sanitization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitiz...

PT-2026-47448

Name of the Vulnerable Software and Affected Versions typo3/html-sanitizer versions prior to 2.3.2 Description When the ALLOW INSECURE RAW TEXT setting is enabled, the sanitizer fails to recognize closing tags containing whitespace variants, such as . Because browsers interpret these as valid end...

PT-2026-47449

Name of the Vulnerable Software and Affected Versions typo3/html-sanitizer versions prior to 2.3.2 Description Namespace attributes are not encoded correctly during HTML serialization. This flaw allows the cross-site scripting prevention mechanism to be bypassed. Cross-site scripting is a techniq...

CVE-2026-42557

jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to 4.5.7, JupyterLab's HTML sanitizer allowlists data-commandlinker-command and data-commandlinker-args on button elements, while CommandLinker listens for all cli...

CVE-2026-48527

HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting XSS vulnerability in the /system/api/saveNode endpoint. An authenticated user with a permission to edit pages can bypass the HTML sanitizer by...

CVE-2026-48527 HaxCMS has a stored Cross-Site Scripting (XSS) bypass in saveNode endpoint

HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting XSS vulnerability in the /system/api/saveNode endpoint. An authenticated user with a permission to edit pages can bypass the HTML sanitizer by...

CVE-2026-48527 HaxCMS has a stored Cross-Site Scripting (XSS) bypass in saveNode endpoint

HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting XSS vulnerability in the /system/api/saveNode endpoint. An authenticated user with a permission to edit pages can bypass the HTML sanitizer by...

GHSA-HHG7-C65M-H7FF Symfony's HtmlSanitizer UrlAttributeSanitizer Omits action/formaction/poster/cite — `javascript`: URI Survives Sanitization (XSS)

Description symfony/html-sanitizer lets applications sanitise untrusted HTML. UrlAttributeSanitizer is the visitor responsible for validating URL-valued attributes and stripping dangerous schemes from them; it runs on every element regardless of configuration. Whether an attribute is kept is...