What is GHSA-4vg5-q837-f88q?

GHSA-4vg5-q837-f88q is a security advisory published by GitHub Security Advisories with Medium severity. Semantic MediaWiki from 3.0.0 before 7.3.1 contains a stored cross-site scripting vulnerability...

Which CVE IDs does GHSA-4vg5-q837-f88q cover?

GHSA-4vg5-q837-f88q covers the following CVE IDs: CVE-2026-116887. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-4vg5-q837-f88q?

GHSA-4vg5-q837-f88q has a CVSS v3 base score of 5.4, published by GitHub Security Advisories.

GHSA-4vg5-q837-f88qMediumCVSS 5.4

Semantic MediaWiki from 3.0.0 before 7.3.1 contains a stored cross-site scripting vulnerability...

Vendor

GitHub Security Advisories

Published

October 27, 2026

Last Modified

October 27, 2026

🔗 CVE IDs covered (1)

CVE-2026-116887 →

📋 Description

Semantic MediaWiki from 3.0.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows users with page-edit rights to inject HTML through Keyword-typed property values rendered unescaped on Special:Browse. Attackers can annotate a Keyword property with an event-handler payload that executes JavaScript in viewers' sessions, including administrators, to read tokens and perform actions.

🔗 References (4)

https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-r7xx-9gqh-q8p9
https://nvd.nist.gov/vuln/detail/CVE-2026-116887
https://www.vulncheck.com/advisories/semantic-mediawiki-3.0.0-before-7.3.1-stored-xss-via-special-browse-keyword-property
https://github.com/advisories/GHSA-4vg5-q837-f88q