CVE-2025-7363: wikimedia foundation mediawiki - titleicon extension Cross-site Scripting
Vulnerability summary
CVE-2025-7363 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in wikimedia foundation mediawiki - titleicon extension. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15% of scored vulnerabilities.
Timeline
- 08-07-2025PublishedVulnerability first disclosed.
- 10-07-2025Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.25%
Chance of exploitation in the next 30 days
Percentile
15%
Versus all other CVEs
30-day change
+0.03 pp
From 0.22% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Wikimedia foundation1 product
- mediawiki - titleicon extension≥ 1.39.x, < 1.39.13 | ≥ 1.42.x, < 1.42.7 | ≥ 1.43.x, < 1.43.2
1 vendor · 1 product