CVE-2017-20208
RegistrationMagic - Custom Registration Forms <= 3.7.9.2 - PHP Object Injection
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-502 |
| Vendor | metagauss |
| Product | registrationmagic – custom registration forms, user registration, payment, and user login |
| Published | Oct 18, 2025 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
metagauss / RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login
0 < 3.7.9.3
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/c2b79193-f8fc-4ea2-8973-fe292cfb926b?source=cve wordfence.com: https://www.wordfence.com/blog/2017/10/3-zero-day-plugin-vulnerabilities-exploited-wild/ plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/1733274/custom-registration-form-builder-with-submission-manager
Credits
Brad Haas