CVE-2018-6383

moderate-risk
Published 2018-01-29

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.

Do I need to act?

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12.7% chance of exploitation in next 30 days
EPSS score — higher than 87% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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1 public exploit available
49949
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Monstra

References (6)

Exploit http://packetstormsecurity.com/files/162968/Monstra-CMS-3.0.4-Remote-Code-Execut...
Exploit https://github.com/Hacker5preme/Exploits/tree/main/CVE-2018-6383-Exploit
Exploit https://github.com/monstra-cms/monstra/issues/429
Exploit http://packetstormsecurity.com/files/162968/Monstra-CMS-3.0.4-Remote-Code-Execut...
Exploit https://github.com/Hacker5preme/Exploits/tree/main/CVE-2018-6383-Exploit
Exploit https://github.com/monstra-cms/monstra/issues/429
47
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 12/34 · Low
Exposure 5/34 · Minimal