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 pn

critical Affects simple-file-list (WordPress plugin). Feed 2026.10.29.3, updated 2026-10-29; published ; advisory modified .

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 pn

Package
simple-file-list (WordPress plugin) WordPress
Affected versions
<4.2.3
Fixed in
4.2.3
Severity
critical  CVSS 9.8
Exploitation
not on CISA KEV · EPSS 44% (98.7th percentile)
Published
2025-07-12
Source
nvd

References

CWE-434
NVD recordsimple-file-list (WordPress plugin) advisories

Am I affected?

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# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden wordpress /var/www/html

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pipx install phpwarden   &&   phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

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