CVE-2020-13384

Name: CVE-2020-13384
Creator: NVD / NIST
Published: 2020-05-22T05:15:11.703+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.50%

Last modified Jun 17, 2026

CVE-2020-13384 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Monstra CMS 3.0.4 allows remote authenticated users to upload and execute arbitrary PHP code via admin/index.php?id=filesmanager because, for example, .php filenames are blocked but .php7 filenames are not, a related issue to CVE-2017-18048.. EPSS estimates a 2.50% chance of exploitation in the next 30 days.

Description

Monstra CMS 3.0.4 allows remote authenticated users to upload and execute arbitrary PHP code via admin/index.php?id=filesmanager because, for example, .php filenames are blocked but .php7 filenames are not, a related issue to CVE-2017-18048.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.50%

82.7th 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://www.exploit-db.com/exploits/48479Exploit, Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/48479Exploit, Third Party Advisory, VDB Entry

Timeline

Published: May 22, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-13384?

How severe is CVE-2020-13384?

CVE-2020-13384 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.50% probability of exploitation in the next 30 days.

How do I fix CVE-2020-13384?

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-2020-13384?

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

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Source: NVD / NIST