CVE-2026-33384 MEDIUM

CVE-2026-33384: Session Fixation in QuickCMS

Vendor Opensolution
Product QuickCMS
Weakness CWE-384 · Session fixation
Published May 29, 2026
Last update May 29, 2026
View on NVD All CVEs

CVSS base score

4.8/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 29, 2026 CVE published
May 29, 2026 Record updated