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9.3
CVE-2021-47923: OpenCart 3.0.3.8: Hijacked User Sessions via Malicious Cookie
CVE-2021-47923
Summary
OpenCart's session management is affected, allowing attackers to take control of user sessions. This can lead to unauthorized access to user accounts. To protect your store, update to the latest version of OpenCart or consider implementing additional security measures.
Original title
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...
Original 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.
nvd CVSS3.1
9.8
nvd CVSS4.0
9.3
Vulnerability type
CWE-290
Published: 10 May 2026 · Updated: 28 May 2026 · First seen: 10 May 2026