GHSA-RJ9P-8JXJ-2CH4 MediaWiki Cross-site Scripting (XSS) vulnerability

An issue was discovered in MediaWiki 1.34.x before 1.34.3. On Special:Contributions, the NS filter uses unescaped messages as keys in the option key for an HTMLForm specifier. This is vulnerable to a mild XSS if one of those messages is changed to include raw HTML...

Cross-site Scripting (XSS)

MediaWiki is vulnerable to cross-site scripting XSS. Allowing an attacker to modify messages is include raw HTML which NS filter uses unescaped messages as keys in the option key for an HTMLForm specifier...