CVE-2021-29439 HIGH

CVE-2021-29439: Plugins can be installed with minimal admin privileges

Vendor Getgrav
Product grav-plugin-admin
Weakness CWE-863 · Incorrect authorization
Published April 13, 2021
Last update August 3, 2024

CVSS base score

7.2/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 13, 2021 CVE published
August 3, 2024 Record updated