Auth bypass in Gitroomhq Postiz-app
CVE-2026-48781
Postiz is an AI social media scheduling tool. In versions prior to 2.21.8, the Skool integration callback signed an attacker-controlled JSON blob into a session-shape JWT using the application's JWT_SECRET, and the auth middleware trusted…
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Gitroomhq Postiz-app — versions < 2.21.8
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-48781?
- CVE-2026-48781 is a critical-severity vulnerability in Gitroomhq Postiz-app, classified under Authentication Bypass by Assumed-Immutable Data. CVSS score: 9.9/10. Published 2026-06-17.
- How severe is CVE-2026-48781?
- Critical severity. CVSS v3 base score is 9.9 out of 10.