Is CVE-2020-13384 actively exploited?

No active exploitation of CVE-2020-13384 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-13384 be exploited remotely?

Yes. CVE-2020-13384 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-13384?

CVE-2020-13384 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2020-13384

CWE-434Published: May 22, 2020· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2020-13384 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.