CVE-2017-20208
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
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Base score: 9.8
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.71%
- Percentile among all scored CVEs: 52
- Score date: 10/4/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1190Exploit Public-Facing Applicationinitial access85 % - Primary impact
T1059Command and Scripting Interpreterexecution80 % - Secondary impact
T1505.003Web Shellpersistence75 %
Plugin WordPress expuesto en red sin autenticación (AV:N/PR:N/UI:N) permite inyección de objetos PHP y ejecución de código/instalación de web shells mediante cadena POP.
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (1)
CWEs
- CWE-502
References
- https://plugins.trac.wordpress.org/changeset/1733274/custom-registration-form-builder-with-submission-manager
- https://www.wordfence.com/blog/2017/10/3-zero-day-plugin-vulnerabilities-exploited-wild/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c2b79193-f8fc-4ea2-8973-fe292cfb926b?source=cve
Raw JSON (NVD)
Show
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