What is GHSA-jm8r-mhmw-h747?

GHSA-jm8r-mhmw-h747 is a security advisory published by GitHub Security Advisories with Medium severity. Joomla! Core - [20260802] - Improper CORS origin validation in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 -...

Which CVE IDs does GHSA-jm8r-mhmw-h747 cover?

GHSA-jm8r-mhmw-h747 covers the following CVE IDs: CVE-2026-71573. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-jm8r-mhmw-h747Medium

Joomla! Core - [20260802] - Improper CORS origin validation in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 -...

Vendor

GitHub Security Advisories

Published

August 18, 2026

Last Modified

August 18, 2026

🔗 CVE IDs covered (1)

CVE-2026-71573 →

📋 Description

Joomla! Core - [20260802] - Improper CORS origin validation in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper implementation prevented configured CORS origins from being properly validated in CORS requests.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-71573
https://developer.joomla.org/security-centre/20260802-core-improper-cors-origin-validation.html
https://www.joomla.org
https://github.com/advisories/GHSA-jm8r-mhmw-h747