CVE-2025-32078: XSSes and potential RCE in Special:VersionCompare

Severity: medium (CVSS 6.9 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-04-11 · updated 2026-06-17
Weakness: CWE-116

Description

Improper Encoding or Escaping of Output vulnerability in The Wikimedia Foundation Mediawiki - Version Compare Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - Version Compare Extension: from 1.39 through 1.43.

Affected products

The Wikimedia Foundation Mediawiki - Version Compare Extension: from 1.39 through 1.43

References

https://gerrit.wikimedia.org/r/q/If901b3b98e615e1a4f4034d932d2d592000b51d0
https://phabricator.wikimedia.org/T384269

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