The Premium Addons PRO plugin for WordPress suffers from a stored XSS vulnerability (CWE-79) via the 'navigation_dots' parameter in the Multi Scroll Widget. This allows authenticated users with contributor or higher privileges to inject arbitrary JavaScript that executes in the context of other users viewing the compromised pages. The vulnerability is due to improper neutralization of input during web page generation, specifically insufficient sanitization and escaping of user-supplied data. The CVSS 3.1 base score is 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N), reflecting network attack vector, low attack complexity, and partial confidentiality and integrity impact without availability impact. No known exploits in the wild or patches have been reported as of the publication date.

An attacker with contributor-level or higher access can inject persistent malicious scripts into pages using the vulnerable parameter. These scripts execute in the browsers of users who visit the affected pages, potentially leading to partial confidentiality and integrity compromise, such as session hijacking or content manipulation. There is no reported impact on availability. The vulnerability affects all versions up to and including 2.9.12 of the Premium Addons PRO plugin for Elementor.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and consider disabling or avoiding use of the Multi Scroll Widget's 'navigation_dots' parameter. Monitor official channels for updates and apply patches promptly once released.