by Kastro
Paper/Archive/CVE-2026-24352

CVE-2026-24352

PluXml PluXml CMS — Session Fixation in PluXml CMS

EPSS 0.4%CVSS 9.8
critical.is priorityof 100
36
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 32.9.329 × 206.6No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
PluXml CMS5.9.0-rc7–CNA
PluXml CMS5.8.21–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CERT-PL (CNA)4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refpluxml.orgwriteupcert.pl/posts/2026/03/CVE-2026-24350