CVE-2026-116891
Medium
Description
SemanticMediaWiki from 4.2.0 before 7.2.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject HTML via unescaped cstate parameters in Special:FacetedSearch. Attackers can craft URLs with q, a matching crc32 csum or filtered=1, and cstate values that break out of hidden input attributes to execute script in victims' browsers.
SeverityMedium
CVSS6.1
Exploit probability—
ProductSemantic-mediawiki Semantic Mediawiki
PublishedOct 27, 2026
First seenOct 27, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- semantic-mediawiki semantic_mediawiki7.2.1 or later
- mediawiki/semantic-media-wiki7.2.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| semantic-mediawiki semantic_mediawiki | 4.2.0 ≤ v < 7.2.1 | 7.2.1 |
| mediawiki/semantic-media-wikiPackagist | 4.2.0 ≤ v < 7.2.1 | 7.2.1 |
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