CVE-2023-5762: Filr – Secure document library < 1.2.3.6 - Author+ RCE via file upload with phar ext

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-12-04 · updated 2026-06-17
Weakness: CWE-94

Description

The Filr WordPress plugin before 1.2.3.6 is vulnerable from an RCE (Remote Code Execution) vulnerability, which allows the operating system to execute commands and fully compromise the server on behalf of a user with Author-level privileges.

Affected products

Filr – Secure document library: before 1.2.3.6 — fixed in 1.2.3.6

How to fix

Upgrade to a fixed version: Filr – Secure document library 1.2.3.6. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/6ad99725-eccc-4b61-bce2-668b62619deb
https://wpscan.com/vulnerability/6ad99725-eccc-4b61-bce2-668b62619deb

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