CVE-2020-36847

CRITICAL
Published Jul 12, 2025 Modified Jul 29, 2025 CWE-434

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.

CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-434 Unrestricted Upload

Affected Products

Vendor Product
simplefilelist simple_file_list

References

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2020-36847? +
CVE-2020-36847 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.
What products are affected by CVE-2020-36847? +
CVE-2020-36847 affects products from simplefilelist, specifically: simple_file_list. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2020-36847? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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