CVE-2018-17418

Name: CVE-2018-17418
Creator: NVD / NIST
Published: 2019-03-07T23:29:00.86+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.13%

Last modified Jun 17, 2026

CVE-2018-17418 is a vulnerability of currently unknown severity. Monstra CMS 3.0.4 allows remote attackers to execute arbitrary PHP code via a mixed-case file extension, as demonstrated by the 123.PhP filename, because plugins\box\filesmanager\filesmanager.admin.php mishandles the forbidden_types variable.. EPSS estimates a 3.13% chance of exploitation in the next 30 days.

Description

Monstra CMS 3.0.4 allows remote attackers to execute arbitrary PHP code via a mixed-case file extension, as demonstrated by the 123.PhP filename, because plugins\box\filesmanager\filesmanager.admin.php mishandles the forbidden_types variable.

Metrics

EPSS Probability

3.13%

86.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Monstra	Monstra	3.0.4

References

https://github.com/AlwaysHereFight/monstra_cms-3.0.4--getshell/blob/master/README.mdExploit, Third Party Advisory
https://github.com/AlwaysHereFight/monstra_cms-3.0.4--getshell/blob/master/README.mdExploit, Third Party Advisory

Timeline

Published: Mar 7, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-17418?

How severe is CVE-2018-17418?

Severity scoring for CVE-2018-17418 is pending analysis. The EPSS model estimates a 3.13% probability of exploitation in the next 30 days.

How do I fix CVE-2018-17418?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-17418?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST