CVE-2021-29439 Information

Description

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.

CVSS Vector

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

Reference

https://github.com/getgrav/grav-plugin-admin/security/advisories/GHSA-wg37-cf5x-55hq

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.2