CVE-2021-47923

critical

Published 2026-05-10 · Modified 2026-05-12

CVSS v3

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2

—

VIR risk

9.8

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.

Predictions

Exploit likelihood

97%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

References

https://www.exploit-db.com/exploits/50555
https://www.opencart.com/
https://www.vulncheck.com/advisories/opencart-session-fixation-via-ocsessid-cookie

CWEs

CWE-290

Verify integrity in audit chain (admin only). AS-IS.