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CVE-2022-2939

MEDIUM 5.3 CVSS 3.1
Published
September 6, 2022
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-200
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Description

The WP Cerber Security plugin for WordPress is vulnerable to security protection bypass in versions up to, and including 9.0, that makes user enumeration possible. This is due to improper validation on the value supplied through the 'author' parameter found in the ~/cerber-load.php file. In vulnerable versions, the plugin only blocks requests if the value supplied is numeric, making it possible for attackers to supply additional non-numeric characters to bypass the protection. The non-numeric characters are stripped and the user requested is displayed. This can be used by unauthenticated attackers to gather information about users that can targeted in further attacks.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • gioni WP Cerber Security, Anti-spam & Malware Scan — From 9.0 (including) to 9.0 (including)
  • cerber wp_cerber_security\,_anti-spam_\&_malware_scan — Up to and including 9.0

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/2772930/wp-cerber/trunk/cerber-load.php Patch, Third Party Advisory
  • www.wordfence.com https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2939 Third Party Advisory
  • nvd.nist.gov Official NVD record