CVE-2026-33384

Session Fixation in QuickCMS

Published May 29, 2026 CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Opensolution
Opensolution quick.cms
Vendors & Products Opensolution
Opensolution quick.cms
Type Values Removed Values Added
Description 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.
Title Session Fixation in QuickCMS
Weaknesses CWE-384
References
Metrics cvssV4_0

{'score': 4.8, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
CERT-PL
Published
Updated
May 29, 2026, 5:31 PM
Reserved
Mar 19, 2026, 10:45 AM
Status
Deferred
Published
May 29, 2026, 4:16 PM
Modified
Jul 21, 2026, 3:10 PM