CVE-2026-126566
Semantic MediaWiki 7.3.1 before 7.4.1 Incorrect Authorization via Edit Protection Annotations
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.
INFO
Published Date :
Nov. 11, 2026, 2:36 a.m.
Last Modified :
Nov. 11, 2026, 2:36 a.m.
Remotely Exploit :
Yes !
Source :
VulnCheck
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 |
Solution
- Update Semantic MediaWiki to version 7.4.1 or later.
- Verify protection settings after updating.
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