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CVE-2018-6383

Date: January 29, 2018

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.

Language: PHP

Severity Score

Related Resources (5)

https://github.com/monstra-cms/monstra/issues/429
https://github.com/Hacker5preme/Exploits/tree/main/CVE-2018-6383-Exploit
https://nvd.nist.gov/vuln/detail/CVE-2018-6383
http://packetstormsecurity.com/files/162968/Monstra-CMS-3.0.4-Remote-Code-Execution.html
https://www.mend.io/vulnerability-database/CVE-2018-6383

Severity Score

Weakness Type (CWE)

Incomplete Blacklist

CWE-184

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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