// For flags

CVE-2023-6187

Paid Memberships Pro <= 2.12.3 - Authenticated (Subscriber+) Arbitrary File Upload

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The Paid Memberships Pro plugin for WordPress is vulnerable to arbitrary file uploads to insufficient file type validation in the 'pmpro_paypalexpress_session_vars_for_user_fields' function in versions up to, and including, 2.12.3. This makes it possible for authenticated attackers with subscriber privileges or above, to upload arbitrary files on the affected site's server which may make remote code execution possible. This can be exploited if 2Checkout (deprecated since version 2.6) or PayPal Express is set as the payment method and a custom user field is added that is only visible at profile, and not visible at checkout according to its settings.

El complemento Paid Memberships Pro para WordPress es vulnerable a cargas de archivos arbitrarias debido a una validación de tipo de archivo insuficiente en la función 'pmpro_paypalexpress_session_vars_for_user_fields' en versiones hasta la 2.12.3 incluida. Esto hace posible que atacantes autenticados con privilegios de suscriptor o superiores carguen archivos arbitrarios en el servidor del sitio afectado, lo que puede hacer posible la ejecución remota de código. Esto se puede aprovechar si se establece 2Checkout (en desuso desde la versión 2.6) o PayPal Express como método de pago y se agrega un campo de usuario personalizado que solo es visible en el perfil y no visible al finalizar la compra según su configuración.

The Paid Memberships Pro plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'pmpro_paypalexpress_session_vars_for_user_fields' function in versions up to, and including, 2.12.3. This makes it possible for authenticated attackers with subscriber privileges or above, to upload arbitrary files on the affected site's server which may make remote code execution possible. This can be exploited if 2Checkout (deprecated since version 2.6) or PayPal Express is set as the payment method and a custom user field is added that is only visible at profile, and not visible at checkout according to its settings.

*Credits: István Márton
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
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:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-11-16 CVE Published
  • 2023-11-17 CVE Reserved
  • 2024-08-02 CVE Updated
  • 2024-10-18 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-434: Unrestricted Upload of File with Dangerous Type
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Strangerstudios
Search vendor "Strangerstudios"
Paid Memberships Pro
Search vendor "Strangerstudios" for product "Paid Memberships Pro"
<= 2.12.3
Search vendor "Strangerstudios" for product "Paid Memberships Pro" and version " <= 2.12.3"
wordpress
Affected