The ElementsKit Elementor Addons plugin for WordPress suffers from a stored cross-site scripting vulnerability (CWE-79) in its image comparison widget. This flaw arises from improper neutralization of user-supplied input in the before/after labels, allowing authenticated users with contributor or higher privileges to inject arbitrary JavaScript code. When other users access the compromised page, the injected script executes, potentially leading to session hijacking or other client-side attacks. The vulnerability is present in all versions up to 3.5.2. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, and limited privileges required but no user interaction needed. No known exploits in the wild have been reported, and no vendor patch or advisory is currently documented.

An attacker with contributor-level or higher access can inject persistent malicious scripts into pages via the image comparison widget's labels. These scripts execute in the context of users viewing the page, potentially compromising user sessions or performing unauthorized actions within the affected site. The vulnerability does not impact availability but affects confidentiality and integrity to a limited extent. No known active exploitation has been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access to trusted users only and consider disabling or avoiding use of the image comparison widget's before/after label feature. Monitor for updates from the vendor roxnor regarding patches or mitigations.