CVE-2021-24657: Limit Login Attempts Project Limit Login Attempts

Medium severity, CVSS 6.1. EPSS: 1.6% chance of exploitation in the next 30 days.

The Limit Login Attempts WordPress plugin before 4.0.50 does not escape the IP addresses (which can be controlled by attacker via headers such as X-Forwarded-For) of attempted logins before outputting them in the reports table, leading to an Unauthenticated Stored Cross-Site Scripting issue.

Affected products

• Limit Login Attempts Project Limit Login Attempts: before 4.0.50 (fixed in 4.0.50)

Published 2021-09-20. Last modified 2026-06-17.