CVE-2025-32696: "reupload-own" restriction can be bypassed by reverting file

Severity: none (CVSS 0.0 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: 2025-04-10 · updated 2026-06-17
Weakness: CWE-281

Description

Improper Preservation of Permissions vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/actions/RevertAction.Php, includes/api/ApiFileRevert.Php. This issue affects MediaWiki: before 1.39.12, 1.42.6, 1.43.1.

Affected products

Wikimedia Foundation MediaWiki: before 1.39.12, 1.42.6, 1.43.1 — fixed in 1.42.6, 1.43.1, 1.39.12

How to fix

Upgrade to a fixed version: Wikimedia Foundation MediaWiki 1.42.6, 1.43.1, 1.39.12. Check the vendor advisory for mitigations.

References

https://phabricator.wikimedia.org/T304474
https://lists.debian.org/debian-lts-announce/2025/07/msg00012.html

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