CVE-2025-2594: user registration \& membership vulnerability

The User Registration & Membership WordPress plugin before 4.1.3 does not properly validate data in an AJAX action when the Membership Addon is enabled, allowing attackers to authenticate as any user, including administrators, by simply using the target account's user ID.
CVE-2025-2594CVSS 8.1CMS

CVE-2025-2594: user registration \& membership vulnerability

The User Registration & Membership WordPress plugin before 4.1.3 does not properly validate data in an AJAX action when the Membership Addon is enabled, allowing attackers to authenticate as any user, including administrators, by simply using the target account's user ID.

CVSS
8.1 HIGH
EPSS
94.75%
Known exploited
not in KEV
Product
user registration \& membership

What is known

The User Registration & Membership WordPress plugin before 4.1.3 does not properly validate data in an AJAX action when the Membership Addon is enabled, allowing attackers to authenticate as any user, including administrators, by simply using the target account's user ID.

Sources

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