CVE-2021-47923

OpenCart 3.0.3.8 Session Fixation via OCSESSID Cookie

Published May 10, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
May 11, 2026, 3:14 PM
Reserved
Feb 1, 2026, 11:24 AM
Status
Deferred
Published
May 10, 2026, 1:16 PM
Modified
Oct 6, 2026, 10:10 PM