CVE-2021-47923 Exploit Db CVE debrief

Who should care

OpenCart administrators, e-commerce operators, and security teams responsible for customer login/session handling should treat this as urgent. Any environment using affected OpenCart code or similar session-management behavior should be reviewed immediately, especially where authenticated customer accounts are exposed.

Technical summary

The supplied description states that OpenCart 3.0.3.8 accepts attacker-controlled OCSESSID cookie values and maintains them as valid sessions, which is consistent with session fixation (CWE-290). The NVD metadata indicates high impact across confidentiality, integrity, and availability, with network access, no privileges required, and no user interaction needed. The cited references include an Exploit-DB item, the OpenCart site, and a VulnCheck advisory, but the debrief here is limited to the facts present in the supplied corpus.

Defensive priority

Critical. The vulnerability is described as remotely exploitable without authentication or user interaction and can lead to full account session takeover.

Recommended defensive actions

• Verify whether any deployed OpenCart instances correspond to the affected 3.0.3.8 code path described in the record.
• Review the referenced VulnCheck advisory and associated disclosure references for remediation guidance.
• Apply the vendor's fixed release or mitigation as soon as a validated patch or upgrade path is available.
• Invalidate active sessions after remediation and force re-authentication for users with existing sessions.
• Audit session-handling behavior to ensure session IDs are regenerated at authentication and that attacker-supplied session identifiers are not accepted.
• Monitor for suspicious OCSESSID values or unusual persistence of session identifiers across login events.

Evidence notes

This debrief is based only on the supplied CVE description, NVD metadata, and the listed references. The source corpus identifies CWE-290 and a critical CVSS v4.0 vector indicating network exploitable, unauthenticated impact. The vendor field in the supplied data is marked low confidence and needs review, so no additional attribution is assumed beyond the cited references.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.