CVE-2026-116891
mediumSemanticMediaWiki from 4.2.0 before 7.2.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject HTML via unes…
Vendor / product: Semantic-mediawiki — semantic mediawiki
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.
CVSS
6.1
6.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-10-27 11:17
Modified: 2026-10-28 15:33
NVD status: Analyzed
Last synced 20 hours ago
Verified against the source API 2026-10-28 16:01 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
semantic-mediawiki / semantic_mediawiki ≥4.2.0 <7.2.1
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-9rcc-pmj8-... disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/semanticmediawiki-4.2.0-before-7.2.1-reflected-xss-vi... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-28 16:01 UTC · record ↗