CVE-2026-24352
Analyzed Analyzed - Analysis Complete

Session Fixation Vulnerability in PluXml CMS Allows Hijacking

Vulnerability report for CVE-2026-24352, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-02-27

Last updated on: 2026-05-19

Assigner: CERT.PL

Description

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 authenticated session. The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only versions 5.8.21 and 5.9.0-rc7 were tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.

CVSS Scores

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Meta Information

Published
2026-02-27
Last Modified
2026-05-19
Generated
2026-07-06
AI Q&A
2026-02-27
EPSS Evaluated
2026-07-05
NVD
EUVD

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
pluxml pluxml 5.8.21
pluxml pluxml 5.9.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-384 Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.

Attack-Flow Graph

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Detection Guidance

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Mitigation Strategies

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Executive Summary

This vulnerability in PluXml CMS allows an attacker to set a user's session identifier before the user authenticates. Because the session ID remains the same after authentication, the attacker can fix a session ID for a victim and later hijack the authenticated session.

Impact Analysis

An attacker exploiting this vulnerability can hijack a victim's authenticated session by fixing the session ID before the victim logs in. This can lead to unauthorized access to the victim's account and potentially sensitive information or actions performed under that account.

Compliance Impact

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