What is GHSA-rvcr-fqrj-f6pf?

GHSA-rvcr-fqrj-f6pf is a security advisory published by GitHub Security Advisories with Medium severity. Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')...

Which CVE IDs does GHSA-rvcr-fqrj-f6pf cover?

GHSA-rvcr-fqrj-f6pf covers the following CVE IDs: CVE-2026-100243. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-rvcr-fqrj-f6pf?

GHSA-rvcr-fqrj-f6pf has a CVSS v3 base score of 6.1, published by GitHub Security Advisories.

GHSA-rvcr-fqrj-f6pfMediumCVSS 6.1

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')...

Vendor

GitHub Security Advisories

Published

September 29, 2026

Last Modified

September 30, 2026

🔗 CVE IDs covered (1)

CVE-2026-100243 →

📋 Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - WikiSEO Extension allows Stored XSS.

This issue affects Mediawiki - WikiSEO Extension: from * before 1.46.1, 1.45.5, 1.43.10.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-100243
https://gerrit.wikimedia.org/r/q/Iff6ef320017649750e5c6723a91ee298eb97a408
https://phabricator.wikimedia.org/T430896
https://github.com/advisories/GHSA-rvcr-fqrj-f6pf