CVE-2021-38356: Nextscripts Social Networks Auto Poster

Medium severity, CVSS 6.1. EPSS: 0.9% chance of exploitation in the next 30 days.

The NextScripts: Social Networks Auto-Poster <= 4.3.20 WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the $_REQUEST['page'] parameter which is echoed out on inc/nxs_class_snap.php by supplying the appropriate value 'nxssnap-post' to load the page in $_GET['page'] along with malicious JavaScript in $_POST['page'].

Affected products

• Nextscripts Social Networks Auto Poster: up to and including 4.3.20

Published 2021-11-01. Last modified 2026-06-17.