CVE-2021-47923
OpenCart 3.0.3.8 Session Fixation via OCSESSID Cookie
- State
- Published
- Severity
- 9.3 Critical
- Published
- May 10, 2026
- Updated
- May 11, 2026
- Reserved
- Feb 1, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | 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 | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-290 Authentication Bypass by Spoofing
Affected Products
| Product | Versions |
|---|---|
opencartOpencart |
|
References
- ExploitDB-50555exploit
- Official Product Homepageproduct
- VulnCheck Advisory: OpenCart 3.0.3.8 Session Fixation via OCSESSID Cookiethird-party-advisory
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