CVE-2026-126566

HighCVSS 7.1/10Last modified Nov 12, 2026

Description

Semantic MediaWiki 7.3.1 before 7.4.1 contains an incorrect authorization vulnerability in EditProtectionUpdater::userMayChangeProtection() that checks protection changes against the page's latest revision author. Editors can add {{#set:Is edit protected=false}} to a transcluded template, removing administrator edit and move protection logged under the administrator's name.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

Weakness enumeration

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
SemanticMediaWikiSemanticMediaWiki>= 7.3.1, < 7.4.1

References

Timeline

Published
Nov 11, 2026
Last modified
Nov 12, 2026
NVD status
Awaiting Analysis

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CVE-2026-126566: High severity, CVSS 7.1 | Vulnix