CVE-2022-1777: Filr - Secure Document Library < 1.2.2.1 - Subscriber+ AJAX Calls

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-06-13 · updated 2026-06-17
Weakness: CWE-862

Description

The Filr WordPress plugin before 1.2.2.1 does not have authorisation check in two of its AJAX actions, allowing them to be called by any authenticated users, such as subscriber. They are are protected with a nonce, however the nonce is leaked on the dashboard. This could allow them to upload arbitrary HTML files as well as delete all files or arbitrary ones.

Affected products

Filr – Secure document library: before 1.2.2.1 — fixed in 1.2.2.1

How to fix

Upgrade to a fixed version: Filr – Secure document library 1.2.2.1. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2022-1777 or the next vulnerability affects your stack