FindAll Membership <= 1.0.4 - Authentication Bypass via Social Login

Authentication Bypass Using an Alternate Path or Channel
CVE CVE-2025-13539
CVSS Critical (9.8)
Publicly Published November 26, 2025
Last Updated November 27, 2025
Researcher István Márton
Description

The FindAll Membership plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.0.4. This is due to the plugin not properly logging in a user with the data that was previously verified through the 'findall_membership_check_facebook_user' and the 'findall_membership_check_google_user' functions. This makes it possible for unauthenticated attackers to log in as administrative users, as long as they have an existing account on the site which can easily be created by default through the temp user functionality, and access to the administrative user's email.

References

1 affected software package

Software Type Plugin
Software Slug findall-membership (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 1.0.4
Patched Version
  • 1.1
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