VULNERABILITY INTELLIGENCE

CVE-2018-6383

CVSS score8.8 HIGH

EPSS probability13.50%

CISA KEVNot currently listed

Published2018-01-29

Last modified2026-06-17

Description

Monstra CMS through 3.0.4 has an incomplete "forbidden types" list that excludes .php (and similar) file extensions but not the .pht or .phar extension, which allows remote authenticated Admins or Editors to execute arbitrary PHP code by uploading a file, a different vulnerability than CVE-2017-18048.