// For flags

CVE-2023-27459

WordPress User Registration plugin <= 2.3.2.1 - Authenticated PHP Object Injection vulnerability

Severity Score

7.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Deserialization of Untrusted Data vulnerability in WPEverest User Registration.This issue affects User Registration: from n/a through 2.3.2.1.

Vulnerabilidad de deserialización de datos no confiables en el registro de usuarios de WPeverest. Este problema afecta el registro de usuarios: desde n/a hasta 2.3.2.1.

The User Registration plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 2.3.2.1 via deserialization of untrusted input in the following functions: ur_get_user_extra_fields, user_registration_form_field. This allows subscriber-level attackers to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

*Credits: Rafie Muhammad (Patchstack)
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-03-01 CVE Reserved
  • 2023-03-21 CVE Published
  • 2024-03-27 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-502: Deserialization of Untrusted Data
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
User Registration
Search vendor "User Registration"
 User Registration
Search vendor "User Registration" for product "User Registration"
 >= 0.0.0.0 <= 2.3.2.1
Search vendor "User Registration" for product "User Registration" and version " >= 0.0.0.0 <= 2.3.2.1"
en
Affected