CVE-2026-77606
Semantic MediaWiki has reflected XSS in Special:Ask plain table headers
- State
- Published
- Severity
- 6.1 Medium
- Published
- Sep 18, 2026
- Updated
- Sep 22, 2026
- Reserved
- Aug 20, 2026
Description
Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Prior to version 7.2.0, when `headers=plain`, table header text was emitted into `<th>` via a raw HTML path. User-controlled `mainlabel` content could therefore become executable HTML. Version 7.2.0 fixes the issue.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.1 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | GitHub_M |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
SemanticMediaWikiSemanticMediaWiki |
|
References
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