// For flags

CVE-2021-24814

WordPress GDPR & CCPA < 1.9.26 - Authenticated Reflected Cross-Site Scripting

Severity Score

9.6
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The check_privacy_settings AJAX action of the WordPress GDPR WordPress plugin before 1.9.26, available to both unauthenticated and authenticated users, responds with JSON data without an "application/json" content-type. Since an HTML payload isn't properly escaped, it may be interpreted by a web browser led to this endpoint. Javascript code may be executed on a victim's browser. If the victim is an administrator with a valid session cookie, full control of the WordPress instance may be taken (AJAX calls and iframe manipulation are possible because the vulnerable endpoint is on the same domain as the admin panel - there is no same-origin restriction).

La acción AJAX check_privacy_settings del plugin GDPR de WordPress versiones anteriores a 1.9.26, disponible tanto para usuarios no autenticados como autenticados, responde con datos JSON sin un tipo de contenido "application/json". Dado que la carga útil HTML no es escapada correctamente, puede ser interpretada por un navegador web que conlleve a este endpoint. El código Javascript puede ser ejecutado en el navegador de la víctima. Si la víctima es un administrador con una cookie de sesión válida, puede tomar el control total de la instancia de WordPress (las llamadas AJAX y la manipulación de iframes son posibles porque el endpoint vulnerable está en el mismo dominio que el panel de administración - no se presenta restricción del mismo origen)

*Credits: Ace Candelario (@0xspade), Victor Paynat-Sautivet (3DS Outscale SOC)
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-14 CVE Reserved
  • 2022-01-26 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Welaunch
Search vendor "Welaunch"
 Wordpress Gdpr\&ccpa
Search vendor "Welaunch" for product "Wordpress Gdpr\&ccpa"
 <= 1.9.26
Search vendor "Welaunch" for product "Wordpress Gdpr\&ccpa" and version " <= 1.9.26"
wordpress
Affected