The CMSMasters Elementor Addon plugin for WordPress suffers from a stored cross-site scripting vulnerability (CWE-79) due to improper neutralization of input during web page generation. This allows authenticated users with contributor-level privileges or above to inject arbitrary web scripts via multiple widgets. The injected scripts execute in the context of any user who views the compromised pages, potentially leading to information disclosure or session hijacking. The vulnerability affects all versions up to and including 1.14.7. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, low privileges required, no user interaction, and impacts on confidentiality and integrity with scope change. No patch or official fix has been documented yet.

An attacker with contributor-level access can inject persistent malicious scripts into pages via vulnerable widgets. These scripts execute in the browsers of users who visit the infected pages, potentially allowing theft of sensitive information or unauthorized actions within the context of the affected site. The impact is limited to confidentiality and integrity, with no availability impact reported. The vulnerability requires authenticated access, reducing the attack surface compared to unauthenticated XSS.

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 limiting use of the affected widgets. Monitor vendor channels for updates and apply patches promptly once released.