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

https://notcve.org/view.php?id=CVE-2021-29439

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. • https://github.com/getgrav/grav-plugin-admin/commit/a220359877fd1281f76ba732e5308e0e3002e4b1 https://github.com/getgrav/grav-plugin-admin/security/advisories/GHSA-wg37-cf5x-55hq • CWE-863: Incorrect Authorization •