CVE-2025-7363: TitleIcon: Stored Cross-Site Scripting (XSS) via #titleicon_unicode parser function
The TitleIcon extension for MediaWiki is vulnerable to stored XSS through the #titleiconunicode parser function. User input passed to this function is wrapped in an HtmlArmor object without sanitization and rendered directly into the page header, allowing attackers to inject arbitrary JavaScript.
This issue affects Mediawiki - TitleIcon extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-7363?
CVE-2025-7363 is rated as a high severity vulnerability due to its potential for stored XSS attacks.
How do I fix CVE-2025-7363?
To fix CVE-2025-7363, update the MediaWiki TitleIcon extension to a version greater than 1.43.2 or apply relevant patches.
What kind of vulnerability is CVE-2025-7363?
CVE-2025-7363 is a stored cross-site scripting (XSS) vulnerability.
Which versions of MediaWiki are affected by CVE-2025-7363?
CVE-2025-7363 affects MediaWiki TitleIcon versions 1.39.13, 1.42.7, and 1.43.2.
Who is impacted by CVE-2025-7363?
Users of the MediaWiki TitleIcon extension who do not update to a safe version are impacted by CVE-2025-7363.