CVE-2026-100243 Stored XSS in WikiSEO author and image properties on action=info

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Wikimedia Foundation Mediawiki - WikiSEO Extension allows Stored XSS. This issue affects Mediawiki - WikiSEO Extension: from before 1.46.1, 1.45.5, 1.43.10...

CVE-2026-100243

The Wikimedia Foundation Mediawiki - WikiSEO Extension is vulnerable to Stored Cross-Site Scripting (XSS) due to the improper neutralization of input during web page generation. Specifically, the vulnerability exists in the author and image properties when accessed via action=info . This issue af...

CVE-2026-10513 Webmention <= 5.8.0 - Unauthenticated Stored Cross-Site Scripting via MF2 'photo'/'url' Author Properties

The Webmention plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 5.8.0 via parser-derived 'avatar' and 'url' author metadata. This is due to insufficient input sanitization and output escaping on user-supplied MF2 author properties processed by the...

CVE-2026-10513

CVE-2026-10513 affects the WordPress Webmention plugin (versions up to and including 5.8.0). The root cause is insufficient input sanitization and output escaping for MF2 author properties (avatar/url) processed by the unauthenticated webmention REST endpoint and rendered into HTML value attribut...

CVE-2026-10513 Webmention <= 5.8.0 - Unauthenticated Stored Cross-Site Scripting via MF2 'photo'/'url' Author Properties

The Webmention plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 5.8.0 via parser-derived 'avatar' and 'url' author metadata. This is due to insufficient input sanitization and output escaping on user-supplied MF2 author properties processed by the...

CVE-2026-10513: Improper Neutralization of Input During Web Page Generation

The Webmention plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 5.8.0 via parser-derived 'avatar' and 'url' author metadata. This is due to insufficient input sanitization and output escaping on user-supplied MF2 author properties processed by the...