What is GHSA-8x9p-9f27-hxfj?

GHSA-8x9p-9f27-hxfj is a security advisory published by GitHub Security Advisories with Medium severity. SemanticMediaWiki from 4.2.0 before 7.2.1 contains a reflected cross-site scripting vulnerability...

Which CVE IDs does GHSA-8x9p-9f27-hxfj cover?

GHSA-8x9p-9f27-hxfj covers the following CVE IDs: CVE-2026-116891. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-8x9p-9f27-hxfj?

GHSA-8x9p-9f27-hxfj has a CVSS v3 base score of 6.1, published by GitHub Security Advisories.

GHSA-8x9p-9f27-hxfjMediumCVSS 6.1

SemanticMediaWiki from 4.2.0 before 7.2.1 contains a reflected cross-site scripting vulnerability...

Vendor

GitHub Security Advisories

Published

October 27, 2026

Last Modified

October 27, 2026

🔗 CVE IDs covered (1)

CVE-2026-116891 →

📋 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.

🔗 References (4)

https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-9rcc-pmj8-ffhr
https://nvd.nist.gov/vuln/detail/CVE-2026-116891
https://www.vulncheck.com/advisories/semanticmediawiki-4.2.0-before-7.2.1-reflected-xss-via-special-facetedsearch-cstate
https://github.com/advisories/GHSA-8x9p-9f27-hxfj