SemanticMediaWiki from 5.0.0 before 7.3.1 contains a stored cross-site scripting vulnerability in ext.smw.tooltip.tippy.js that renders data-* attributes via innerHTML with allowHTML enabled. Editors can plant a .smw-highlighter span with a malicious data-content, data-title, data-top, data-bottom, or data-theme attribute to execute JavaScript when viewers, including administrators, hover it.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-4wj6-wmjp-pmhh Exploit, Mitigation, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 8
- Cpes+1 CPE criteria (now 1)NVD modified 2026-10-28 15:32
- StatusPublished → AnalyzedNVD modified 2026-10-28 15:32
- StatusAwaiting Analysis → PublishedNVD modified 2026-10-27 10:26
- StatusPublished → Awaiting AnalysisNVD modified 2026-10-27 15:06
- StatusReceived → PublishedNVD modified 2026-10-27 10:26
- StatusPublished → ReceivedNVD modified 2026-10-27 11:17
- CVSS5.3 (v4.0, CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N) → 5.3 (v4.0, CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)NVD modified 2026-10-27 11:17
- First seenCVSS 5.3 · semanticmediawikiNVD modified 2026-10-27 10:26
Affected (CPE criteria) 1
cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:*:*:*:*:*:mediawiki:*:*
References 2
- https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-4wj6-wmjp-pmhh Exploit, Mitigation, Vendor Advisory
- https://www.vulncheck.com/advisories/semanticmediawiki-5.0.0-before-7.3.1-stored-xss-via-tooltip-module-data-attributes Third Party Advisory