CVE-2026-33384
MEDIUM EPSS 4.9%
Published May 29, 20261mo ago · Modified Jun 17, 20262w ago
4.8 CVSS 4.0
Published May 29, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction P
Scope X
Threat Intelligence
EPSS Exploit Probability
4.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-384
References 2
- cert.pl https://cert.pl/posts/2026/05/CVE-2026-33384/
- opensolution.org https://opensolution.org/home.html
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.