XSS Vulnerability in NextScripts: Social Networks Auto-Poster Plugin Impacts 100,000 Sites

The Wordfence Threat Intelligence team discovered a reflected Cross-Site Scripting(XSS) vulnerability we found in NextScripts: Social Networks Auto-Poster, a WordPress plugin with over 100,000 installations.

All Wordfence users, including Wordfence Premium customers as well as those still using the free version of Wordfence, are protected against this vulnerability by our firewall’s built-in cross-site scripting protection.

As with all XSS attacks, malicious JavaScript running in an administrator’s session could be used to add malicious administrative users or insert backdoors into a site, and thus be used for site takeover.

All the gory details are available at the original article at: https://www.wordfence.com/blog/2021/10/xss-vulnerability-in-nextscripts-social-networks-auto-poster-plugin-impacts-100000-sites

Posted in Updates, Vulnerability.