CVE-2017-20208
RegistrationMagic - Custom Registration Forms <= 3.7.9.2 - PHP Object Injection
- State
- Published
- Severity
- 9.8 Critical
- Published
- Oct 18, 2025
- Updated
- Apr 8, 2026
- Reserved
- Oct 17, 2025
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Wordfence |
Weaknesses
- CWE-502 Deserialization of Untrusted Data
Affected Products
| Product | Versions |
|---|---|
RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Loginmetagauss |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c2b79193-f8fc-4ea2-8973-fe292cfb926b?source=cve
- https://www.wordfence.com/blog/2017/10/3-zero-day-plugin-vulnerabilities-exploited-wild/
- https://plugins.trac.wordpress.org/changeset/1733274/custom-registration-form-builder-with-submission-manager
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