The Supreme Modules Lite – Divi Theme, Extra Theme, and Divi Builder plugin for WordPress suffers from a DOM-based Cross-Site Scripting vulnerability via the 'typing_cursor' parameter. This occurs due to improper input neutralization during web page generation, allowing authenticated users with contributor or higher privileges to inject malicious scripts. These scripts execute in the context of users viewing the injected pages, potentially leading to information disclosure or session hijacking. The vulnerability affects versions up to 2.5.3 and has a CVSS 3.1 score of 6.4 (medium severity). No patch or remediation details are currently available.

An authenticated attacker with contributor-level or higher permissions can exploit this vulnerability to inject arbitrary JavaScript code into pages generated by the plugin. This code executes in the browsers of users who view the compromised pages, potentially enabling theft of sensitive information or unauthorized actions within the context of the affected site. The impact is limited to confidentiality and integrity, with no direct availability impact reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level permissions to trusted users only and consider disabling or limiting use of the affected plugin features that process the 'typing_cursor' parameter. Monitor vendor channels for updates and apply patches promptly once available.