Description
WordPress Plugin Paid Memberships Pro-Content Restriction, User Registration, & Paid Subscriptions is prone to an SQL injection vulnerability because it fails to sufficiently sanitize user-supplied data before using it in an SQL query. Exploiting this issue could allow an attacker to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database. WordPress Plugin Paid Memberships Pro-Content Restriction, User Registration, & Paid Subscriptions versions 1.5.5 - 2.9.11 are vulnerable.
Remediation
Update to plugin version 2.9.12 or latest
References
https://sploitus.com/exploit?id=WPEX-ID:19EF92FD-B493-4488-91F0-E6BA51362F79
https://plugins.svn.wordpress.org/paid-memberships-pro/trunk/readme.txt