What is CVE-2018-17418?

CVE-2018-17418 is a high-severity vulnerability in Monstra, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2019-03-07.

How severe is CVE-2018-17418?

High severity. CVSS v3 base score is 7.2 out of 10.

Is CVE-2018-17418 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Monstra

CVE-2018-17418

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.

Vulnerability class: Unrestricted File Upload

EPSS: 0.031 (86.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Monstra — versions 3.0.4
N/a — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-17418?: CVE-2018-17418 is a high-severity vulnerability in Monstra, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2019-03-07.
How severe is CVE-2018-17418?: High severity. CVSS v3 base score is 7.2 out of 10.
Is CVE-2018-17418 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.