VulnerabilityDeferred

CVE-2025-7363

The TitleIcon extension for MediaWiki is vulnerable to stored XSS through the #titleicon_unicode parser function.

MEDIUM 5.4EPSS 0.22%

Does this matter?

Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own.

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 3.1: 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS: 0.22% probability · 12th percentile
CISA KEV: Not listed
Weakness: CWE-79
Source: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.