What is CVE-2026-24352?

CVE-2026-24352 is a critical-severity vulnerability in Pluxml, classified under Session Fixation. CVSS score: 9.8/10. Published 2026-02-27.

How severe is CVE-2026-24352?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Pluxml

CVE-2026-24352

PluXml CMS 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 authe…

EPSS: 0.004 (27.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Pluxml — versions 5.8.21, 5.9.0
Pluxml Cms — versions 5.9.0-rc7, 5.8.21

Weakness classification (CWE)

CWE-384 — Session Fixation

References

cvd@cert.pl (Product, product)
cvd@cert.pl (Broken Link, third-party-advisory)

Frequently asked questions

What is CVE-2026-24352?: CVE-2026-24352 is a critical-severity vulnerability in Pluxml, classified under Session Fixation. CVSS score: 9.8/10. Published 2026-02-27.
How severe is CVE-2026-24352?: Critical severity. CVSS v3 base score is 9.8 out of 10.