What is GHSA-4f49-557j-w78c?

GHSA-4f49-557j-w78c is a security advisory published by GitHub Security Advisories with High severity. The permission check for the frontend management update flow verified a different event than the...

Which CVE IDs does GHSA-4f49-557j-w78c cover?

GHSA-4f49-557j-w78c covers the following CVE IDs: CVE-2026-77145. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-4f49-557j-w78cHigh

The permission check for the frontend management update flow verified a different event than the...

Vendor

GitHub Security Advisories

Published

August 25, 2026

Last Modified

August 25, 2026

🔗 CVE IDs covered (1)

CVE-2026-77145 →

📋 Description

The permission check for the frontend management update flow verified a different event than the one the request went on to modify. A user with frontend event management access could therefore modify events belonging to other organizers.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-77145
https://typo3.org/security/advisory/typo3-ext-sa-2026-026
https://github.com/advisories/GHSA-4f49-557j-w78c