// For flags

CVE-2021-29439

Plugins can be installed with minimal admin privileges

Severity Score

7.2
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The Grav admin plugin prior to version 1.10.11 does not correctly verify caller's privileges. As a consequence, users with the permission `admin.login` can install third-party plugins and their dependencies. By installing the right plugin, an attacker can obtain an arbitrary code execution primitive and elevate their privileges on the instance. The vulnerability has been addressed in version 1.10.11. As a mitigation blocking access to the `/admin` path from untrusted sources will reduce the probability of exploitation.

El plugin de administración de Grav anterior a versión 1.10.11, no verifica correctamente los privilegios de la persona que llama. Como consecuencia, los usuarios con el permiso "admin.login" pueden instalar plugins de terceros y sus dependencias. Al instalar el plugin correcto, un atacante puede obtener una primitiva ejecución de código arbitraria y elevar sus privilegios en la instancia. La vulnerabilidad ha sido solucionada en la versión 1.10.11. Como mitigación, el bloqueo del acceso a la ruta "/admin" desde fuentes no confiables reducirá la probabilidad de explotación

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-03-30 CVE Reserved
  • 2021-04-13 CVE Published
  • 2024-08-03 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-863: Incorrect Authorization
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Getgrav
Search vendor "Getgrav"
 Grav Admin
Search vendor "Getgrav" for product "Grav Admin"
 < 1.10.11
Search vendor "Getgrav" for product "Grav Admin" and version " < 1.10.11"
-
Affected