CVE-2025-7362

The MsUpload extension for MediaWiki is vulnerable to stored XSS via the msu-continue system message, which is inserted into the DOM without proper sanitization. The vulnerability occurs in the file upload UI when the same filename is uploaded twice. This issue affects Mediawiki - MsUpload 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.

Score

CVSS 3.1 5.4 Medium

Status

Deferred - c4f26cc8-17ff-4c99-b5e2-38fc1793eacc

Published

2025-07-08

Last modified

2025-07-10

Weaknesses

CWE-79

Affected products

• Mediawiki - Msupload Extension (Wikimedia Foundation)

References

• https://gerrit.wikimedia.org/r/q/Icf4c0a5a936926ea887ca2e48c3a7bd297201d9f
• https://phabricator.wikimedia.org/T394864