CVE-2017-20208
RegistrationMagic - Custom Registration Forms <= 3.7.9.2 - PHP Object Injection
criticalDeserialization of Untrusted Data
9.8
CVSS Score
9.8
CVSS Score
critical
Severity
3.7.9.3
Patched in
2938d
Time to patch
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.
CVSS Vector Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HAttack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
High
Confidentiality
High
Integrity
High
Availability
Technical Details
Affected versions
<3.7.9.3PublishedOctober 2, 2017
Last updatedOctober 18, 2025
Affected plugincustom-registration-form-builder-with-submission-manager
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