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Home / Threats / CVE-2021-37597

CVE-2021-37597 - N A Plugin

CVE-2021-37597

Vulnerability CVE-2021-37597 PLUGIN n-a CRITICAL

WP Cerber before 8.9.3 allows MFA bypass via wordpress_logged_in_[hash] manipulation.

CVE-2021-37597

CRITICAL CVSS 9.8 Published 2021-08-19 Updated 2024-11-21
AI Risk Critical (100/100) Active Exploit: Likely Published Exploit: Public exploit references found Priority: P1 Immediate
Severity Band CRITICAL
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Components 1
Reference Links 2
AI Risk Engine Critical (100/100)
Exploitability High
Active Exploitation Likely
Published Exploit Status Public exploit references found

Threat Timeline

  1. 2021-08-19 CVE published and first recorded in the threat feed.
  2. 2024-11-21 Record updated with latest vulnerability metadata.
  3. 2026-04-12 AI technical context refreshed for mitigation and impact guidance.
  4. Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 10 days ago

AI enriched 10 days ago (2026-04-12 02:20 UTC)

Technical Summary

WP Cerber before 8.9.3 allows MFA bypass via wordpress_logged_in_[hash] manipulation.

Potential Impact

Severity is CRITICAL (CVSS 9.8). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as High based on published exploit references.

Primary risk drivers: published exploit references

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 100/100 (Critical, High) with priority P1 Immediate. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

N A PLUGIN · n-a Affected: < 8.9.3 Fixed in: 8.9.3
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