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Vulnerability record · CVE-2025-12004 · published 21 October 2025

CVE-2025-12004: Incorrect permission assignment vulnerability

Incorrect Permission Assignment for Critical Resource vulnerability in The Wikimedia Foundation Mediawiki - Lockdown Extension allows Privilege Abuse. Fixed in Mediawiki Core Action APIThis issue affects Mediawiki - Lockdown Extension: from master before 1.42.

10.0 CVSS 4.0 Critical EPSS 0.32% · top 77.8% CWE-732 · Incorrect permission assignment Deferred
10.0CVSS 4.0 base score
0.32%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

Incorrect Permission Assignment for Critical Resource vulnerability in The Wikimedia Foundation Mediawiki - Lockdown Extension allows Privilege Abuse. Fixed in Mediawiki Core Action APIThis issue affects Mediawiki - Lockdown Extension: from master before 1.42.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://gerrit.wikimedia.org/r/q/Id275382743957004fa7fc56318fc104d8e2d267b
https://phabricator.wikimedia.org/T397521
https://phabricator.wikimedia.org/T397521

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Source: NIST National Vulnerability Database (record CVE-2025-12004), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.