CVE-2017-20208: Metagauss Registrationmagic

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

The RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login plugin for WordPress is vulnerable to PHP Object Injection in all versions up to 3.7.9.3 (exclusive) via deserialization of untrusted input from the is_expired_by_date() function. This makes it possible for unauthenticated attackers to inject a PHP Object. The additional presence of a POP chain allows attackers to fetch a remote file and install it on the site.

Affected products

• Metagauss Registrationmagic: before 3.7.9.3 (fixed in 3.7.9.3)

Published 2025-10-18. Last modified 2026-06-17.