Vulnerability Description
SemanticMediaWiki from 2.5.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows users with page-edit rights to inject script through Code-typed property values. Attackers can annotate a valid JSON value embedding HTML markup, which the CodeStringValueFormatter renders unescaped on Special:Browse, executing JavaScript in viewers' sessions.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Semantic-Mediawiki | Semantic Mediawiki | >= 2.5.0, < 7.3.1 |
Related Weaknesses (CWE)
References
- https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-ExploitMitigationVendor Advisory
- https://www.vulncheck.com/advisories/semanticmediawiki-2.5.0-before-7.3.1-storedThird Party Advisory
FAQ
What is CVE-2026-116889?
CVE-2026-116889 is a vulnerability with a CVSS score of 6.1 (MEDIUM). SemanticMediaWiki from 2.5.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows users with page-edit rights to inject script through Code-typed property values. Attackers ca...
How severe is CVE-2026-116889?
CVE-2026-116889 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-116889?
Check the references section above for vendor advisories and patch information. Affected products include: Semantic-Mediawiki Semantic Mediawiki.