CVE-2026-126561
Semantic MediaWiki 2.5.0 before 7.4.1 Missing Authorization via Is edit protected Annotation
Description
Semantic MediaWiki 2.5.0 before 7.4.1 contains a missing authorization vulnerability that allows editors without the edit-protection right to lock pages by adding an Is edit protected annotation. Attackers can add [[Is edit protected::true]] to pages or #set it in widely transcluded templates, so the TitleQuickPermissions hook blocks other editors and administrators from editing, moving or deleting them indefinitely.
INFO
Published Date :
Nov. 11, 2026, 2:35 a.m.
Last Modified :
Nov. 11, 2026, 2:35 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.
- Review and remove Is edit protected annotations from affected pages.
- Verify user permissions and access controls.
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CVE-2026-126561 vulnerability anywhere in the article.