CVE-2025-7363
Medium
Description
The TitleIcon extension for MediaWiki is vulnerable to stored XSS through the #titleicon_unicode 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.
SeverityMedium
CVSS5.4
Exploit probability—
ProductMediawiki - TitleIcon extension
PublishedJul 8, 2025
First seenJul 8, 2025
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- Wikimedia Foundation Mediawiki - TitleIcon extension1.39.13, 1.42.7, 1.43.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Wikimedia Foundation Mediawiki - TitleIcon extension | 1.39.x ≤ v < 1.39.13, 1.42.x ≤ v < 1.42.7, 1.43.x ≤ v < 1.43.2 | 1.39.13, 1.42.7, 1.43.2 |
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