The Responsive Plus – Elementor Templates & Starter Sites plugin for WordPress suffers from a stored cross-site scripting vulnerability (CWE-79) in its file uploader component. Authenticated attackers with Author-level privileges or above can inject arbitrary web scripts because the plugin does not properly sanitize input or escape output. This vulnerability affects all versions up to 3.0.5 and can lead to script execution in the context of users visiting the injected pages. The CVSS 3.1 base score is 6.4 (medium severity), with network attack vector, low attack complexity, privileges required at the Author level, no user interaction needed, and impacts on confidentiality and integrity but not availability.

An attacker with Author-level access or higher can exploit this vulnerability to inject malicious scripts that execute in the browsers of users who visit the affected pages. This can lead to unauthorized actions such as session hijacking, defacement, or other attacks impacting confidentiality and integrity of user data. There is no impact on system availability. No known exploits in the wild have been reported at this time.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict Author-level access to trusted users only and consider disabling or limiting use of the plugin's file uploader functionality. Monitor for plugin updates from cyberchimps and apply official patches promptly once released.