Skip to main content
Public proof of conceptFix available

CVE-2020-36847

Simple File List < 4.2.3 - Remote Code Execution

A public proof of concept exists; no exploitation attested.

  • Published2025-07-12
  • Fixed in4.2.3
  • WeaknessCWE-434

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2025-07-1210:15CVE publishedNVD
  2. 2025-07-22Exploit-DB entryExploit-DB

Versions per branch

NVD
Simplefilelist simple file list
BranchAffectedFixed in
4.2< 4.2.34.2.3

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As Wordfence, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • eemitch Simple File Listother versions: not affected
    Affected
    • < 4.2.3fixed in 4.2.3semver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-07-12

Fix

  1. Update Simplefilelist simple file list to 4.2.3

Advisories and patches

Detection

read 2026-11-01 01:02 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-52371
Exploit-DB
Proof of concept
Metasploit modules
1 moduleexploit/multi/http/wp_simple_file_list_rcerank: goodModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2025-07-12
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-34hm-qhxq-8vfv

Frequently asked questions

What is CVE-2020-36847?

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.

Is CVE-2020-36847 actively exploited?

A proof-of-concept exploit exists for CVE-2020-36847, but active exploitation has not been confirmed at this time.

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

CVE-2020-36847 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Hear about the next vulnerability in your software

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record