Description
OpenCart 3.0.3.8 contains a session fixation vulnerability that allows attackers to hijack user sessions by injecting arbitrary values into the OCSESSID cookie. Attackers can set malicious OCSESSID cookie values that the server accepts and maintains, enabling session takeover and unauthorized access to user accounts.
Published: 2026-05-10
Score: 9.3 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 11 May 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sun, 10 May 2026 13:00:00 +0000

Type Values Removed Values Added
Description OpenCart 3.0.3.8 contains a session fixation vulnerability that allows attackers to hijack user sessions by injecting arbitrary values into the OCSESSID cookie. Attackers can set malicious OCSESSID cookie values that the server accepts and maintains, enabling session takeover and unauthorized access to user accounts.
Title OpenCart 3.0.3.8 Session Fixation via OCSESSID Cookie
First Time appeared Opencart
Opencart opencart
Weaknesses CWE-290
CPEs cpe:2.3:a:opencart:opencart:3.0.3.8:*:*:*:*:*:*:*
Vendors & Products Opencart
Opencart opencart
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Opencart Opencart
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-11T15:14:34.087Z

Reserved: 2026-02-01T11:24:18.715Z

Link: CVE-2021-47923

cve-icon Vulnrichment

Updated: 2026-05-11T15:14:28.361Z

cve-icon NVD

Status : Deferred

Published: 2026-05-10T13:16:28.170

Modified: 2026-05-12T14:24:15.210

Link: CVE-2021-47923

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-10T14:45:14Z

Weaknesses