Is CVE-2020-36847 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2020-36847, but active exploitation has not been confirmed.

Can CVE-2020-36847 be exploited remotely?

Yes. CVE-2020-36847 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-36847?

CVE-2020-36847 has a CVSS score of 9.8 (CRITICAL).

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CRITICALPOC

CVE-2020-36847

CWE-434Published: July 12, 2025· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

The Simple-File-List Plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 4.2.2 via the rename function which can be used to rename uploaded PHP code with a png extension to use a php extension. This allows unauthenticated attackers to execute code on the server.

NVD Source

Risk Analysis

The Simple-File-List plugin for WordPress contains a flaw that allows unauthenticated users to perform remote code execution by manipulating file extensions. With a CVSS score of 9.8, this is a critical vulnerability that grants attackers full control over the server.

A proof-of-concept exploit is available for this vulnerability, which is remotely exploitable due to its low attack complexity and network-based vector. It is not currently listed in the CISA KEV catalog.

Recommended Action

Users should update the Simple-File-List plugin to a version beyond 4.2.2 to remediate this issue.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2020-36847 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

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 9.8.

A proof-of-concept (PoC) exploit exists for CVE-2020-36847. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.