CVE-2018-6383

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.
Severity
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Atk. Vector
NETWORK
Atk. Complexity
LOW
Priv. Required
LOW
Base Score
CVSS 3.x
EPSS Score
Percentile: 89%
VendorProductVersion
monstramonstra
𝑥
≤ 3.0.4
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
http://packetstormsecurity.com/files/162968/Monstra-CMS-3.0.4-Remote-Code-Execution.html
https://github.com/Hacker5preme/Exploits/tree/main/CVE-2018-6383-Exploit
https://github.com/monstra-cms/monstra/issues/429
http://packetstormsecurity.com/files/162968/Monstra-CMS-3.0.4-Remote-Code-Execution.html
https://github.com/Hacker5preme/Exploits/tree/main/CVE-2018-6383-Exploit
https://github.com/monstra-cms/monstra/issues/429