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CVE-2025-12004

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Date: October 21, 2025

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.

Severity Score

Related Resources (4)

https://nvd.nist.gov/vuln/detail/CVE-2025-12004
https://phabricator.wikimedia.org/T397521
https://gerrit.wikimedia.org/r/q/Id275382743957004fa7fc56318fc104d8e2d267b
https://www.mend.io/vulnerability-database/CVE-2025-12004

Severity Score

Weakness Type (CWE)

Incorrect Permission Assignment for Critical Resource

CWE-732

Top Fix

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Upgrade Version

Upgrade to version https://github.com/wikimedia/mediawiki.git - 1.39.12

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): HIGH
Availability (A): NONE

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