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Quick.Cart CVE-2026-23796

CRITICAL
Session Fixation (CWE-384)
2026-02-05 cvd@cert.pl
9.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
CVE Published
Feb 05, 2026 - 12:16 nvd
CRITICAL 9.8

DescriptionCVE.org

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 authenticated session.

The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 6.7 was tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.

AnalysisAI

Session fixation vulnerability in Quick.Cart allows attackers to set a user's session identifier before authentication. The session ID persists through login, enabling session hijacking of authenticated users.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Set session identifier pre-authentication
Exploit
Victim authenticates with attacker's session ID
Execution
Attacker uses fixed session ID
Impact
Access victim's authenticated account

Vulnerability AssessmentAI

Exploitation Quick.Cart version 6.7 with session management accepting pre-authentication session identifier assignment that persists post-authentication. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 9.8. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Attacker sends victim a link with a predetermined session ID, victim authenticates, attacker uses the known session ID to impersonate the authenticated user.
Remediation Regenerate session identifiers upon authentication. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify all Quick.Cart instances in production and document exposure scope; notify affected customers of potential risk; enable enhanced logging on authentication and session management. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-23796 vulnerability details – vuln.today

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