What’s Vulnerable › Vulnerabilities

CVE-2021-37597

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-19 · updated 2026-06-17
• Weakness: CWE-287

Description

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

Affected products

• Wpcerber Wp Cerber: before 8.9.3 — fixed in 8.9.3

How to fix

Upgrade to a fixed version: Wpcerber Wp Cerber 8.9.3. Check the vendor advisory for mitigations.

References

• https://github.com/fireeye/Vulnerability-Disclosures
• https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0023/FEYE-2021-0023.md
• https://github.com/fireeye/Vulnerability-Disclosures
• https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0023/FEYE-2021-0023.md

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