What is CVE-2026-23796?

CVE-2026-23796 is a critical-severity vulnerability in Opensolution Quick.cart, classified under Session Fixation. CVSS score: 9.8/10. Published 2026-02-05.

How severe is CVE-2026-23796?

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

Vulnerability in Opensolution Quick.cart

CVE-2026-23796

Quick.Cart 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: 0.003 (18.3th 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

Opensolution Quick.cart — versions 6.7

Weakness classification (CWE)

CWE-384 — Session Fixation

References

cvd@cert.pl (Product, product)
cvd@cert.pl (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-23796?: CVE-2026-23796 is a critical-severity vulnerability in Opensolution Quick.cart, classified under Session Fixation. CVSS score: 9.8/10. Published 2026-02-05.
How severe is CVE-2026-23796?: Critical severity. CVSS v3 base score is 9.8 out of 10.