CVE-2017-20208

CRITICAL EPSS 46.3%
Published Oct 18, 20258mo ago · Modified Jun 17, 20261w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Oct 18, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
46.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-502 Deserialization of Untrusted Data Validation

Affected Products 1

VendorProductVersionRange
metagaussregistrationmagic* <3.7.9.3

References 3

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/1733274/custom-registration-form-builder-with-submission-manager
    Patch
  • wordfence.com https://www.wordfence.com/blog/2017/10/3-zero-day-plugin-vulnerabilities-exploited-wild/
    Press/Media CoverageThird Party Advisory
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/c2b79193-f8fc-4ea2-8973-fe292cfb926b?source=cve
    Technical Description

Remediation

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/1733274/custom-registration-form-builder-with-submission-manager
    Patch