CVE-2025-7362CWE-79

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

Medium · published July 8, 2025

CVSS v3.1
5.4
EPSS
0%
Percentile
9.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00198 · 9.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2025-07-08T17:22Z
EPSS history
Timeline
  • 08 JUL 17:22Z
    MsUpload: Stored Cross-Site Scripting (XSS) via unsanitized msu-continue system message
    cvelistv5