Session Fixation in QuickCMS_CVE-2026-33384

4.8 / 10

MEDIUM

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

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.

Basic Information

ID CVE-2026-33384

Source CERT-PL

Published May 29, 2026 at 15:12

Affected Product

Vendor OpenSolution

Product QuickCMS

Affected Versions OpenSolution QuickCMS 0

CWE Classification

CWE-384

References

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    "lastseen": "",
    "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\nfor a victim and later hijack the authenticated session.\n\nThis issue was fixed in a patch to version 6.8 published on 15.05.2026, deployments without this patch are still vulnerable.",
    "published": "2026-05-29T15:12:14.339Z",
    "modified": "2026-05-29T15:12:14.339Z",
    "type": "cve",
    "title": "Session Fixation in QuickCMS",
    "source": "CERT-PL",
    "references": "https://cert.pl/posts/2026/05/CVE-2026-33384/\nhttps://opensolution.org/home.html",
    "id": "CVE-2026-33384",
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