CVE-2025-7362

Public Exploit
MsUpload: Stored Cross-Site Scripting (XSS) via unsanitized msu-continue system message

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.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Affected: Wikimedia Foundation Mediawiki - MsUpload extension
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2025-7362?
CVE-2025-7362 has been scored as a medium severity vulnerability.
How to fix CVE-2025-7362?
To fix CVE-2025-7362, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-7362 being actively exploited in the wild?
It is possible that CVE-2025-7362 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-7362?
CVE-2025-7362 affects Wikimedia Foundation Mediawiki - MsUpload extension.
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