Vulnerability · Published Jul 8, 2025 · Assigned by wikimedia-foundation
CVE-2025-7362MsUpload: Stored Cross-Site Scripting (XSS) via unsanitized msu-continue system message
Medium 5.4
In plain English
A medium-severity cross-site scripting in Mediawiki - MsUpload extension from Wikimedia Foundation. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Wikimedia Foundation | Mediawiki - MsUpload extension | 1.39.x – before 1.39.131.42.x – before 1.42.71.43.x – before 1.43.2 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N