6.1
MediumCVSS 3.1 · from VulnCheck
CVE-2026-116891
SemanticMediaWiki 4.2.0 before 7.2.1 Reflected XSS via Special:FacetedSearch cstate
SemanticMediaWiki · Cross-site scripting · CWE-79AffectedSemanticMediaWiki
FixUpdate to 7.2.1 or newer
PublishedOct 27, 10:23 · VulnCheck
ScoredOct 27 · 6.1 · VulnCheck
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:09 UTC
What we know
No known exploitation. CISA KEV, checked 22:09 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker only needs network access to the target. No login needed. CVSS: network, no privileges.
Someone has to open, click or run something first. CVSS: user interaction required.
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.
From VulnCheck
Affected and fixed versions
ProductAffectedFixed inSemanticMediaWiki4.2.0 – before 7.2.17.2.1SemanticMediaWikiNot affected7.2.1
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known