CVE-2026-33384 — Session Fixation in QuickCMS

CVE-2026-33384

Session Fixation in QuickCMS PUBLISHED

Description (CNA)

QuickCMS allows a user's session identifier to be set before authentication. The value of this session ID stays the same after authentication. This behaviour enables an attacker to fix a session ID for a victim and later hijack the authenticated session. This issue was fixed in a patch to version 6.8 published on 15.05.2026, deployments without this patch are still vulnerable.

Affected (CNA)

Vendor / product	Versions
OpenSolution / QuickCMS	affected 0 through 6.8

CWE

CWE-384

References

https://cert.pl/posts/2026/05/CVE-2026-33384/
https://opensolution.org/home.html

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.