WP Cerber Security <= 9.0 - User Enumeration Bypass

5.3
Exposure of Sensitive Information to an Unauthorized Actor
CVE CVE-2022-2939
CVSS 5.3 (Medium)
Publicly Published September 2, 2022
Last Updated January 22, 2024
Researcher Margaux DABERT - Intrinsec

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.

References

Share

Vulnerability Details for WP Cerber Security, Anti-spam & Malware Scan

Software Type Plugin
Software Slug wp-cerber (view on wordpress.org)
Patched? Yes
Remediation Update to version 9.1, or a newer patched version
Affected Version
  • <= 9.0
Patched Version
  • 9.1

Did you know Wordfence Intelligence provides free personal and commercial API access to our comprehensive WordPress vulnerability database, along with a free webhook integration to stay on top of the latest vulnerabilities added and updated in the database? Get started today!

Learn more

Want to get notified of the latest vulnerabilities that may affect your WordPress site?
Install Wordfence on your site today to get notified immediately if your site is affected by a vulnerability that has been added to our database.

Get Wordfence

The Wordfence Intelligence WordPress vulnerability database is completely free to access and query via API. Please review the documentation on how to access and consume the vulnerability data via API.

Documentation