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.

Code

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No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. May 10, 2026 · NIST NVD

   Detected

   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.

2. Oct 6, 2026 · NIST NVD

   Updated

   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.

Sources

• CVE.orgVulnerability recordCVE-2021-47923

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2021-47923

  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

  nvd.nist.gov

References

• Reference · exploit-db.com
• Reference · opencart.com
• Reference · vulncheck.com