VULNERABILITY INTELLIGENCE

CVE-2021-29439

CVSS score7.2 HIGH
EPSS probability2.59%
CISA KEVNot currently listed
Published2021-04-13
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • CWE-863: Incorrect Authorization

Primary references