CVE-2021-24180: NEVER5 Related Posts

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

Unvalidated input and lack of output encoding within the Related Posts for WordPress plugin before 2.0.4 lead to a Reflected Cross-Site Scripting (XSS) vulnerability within the 'lang' GET parameter while editing a post, triggered when users with the capability of editing posts access a malicious URL.

Affected products

• NEVER5 Related Posts: before 2.0.4 (fixed in 2.0.4)

Published 2021-04-05. Last modified 2026-06-17.