The Master Addons For Elementor plugin for WordPress suffers from a stored XSS vulnerability due to insufficient input sanitization and output escaping of the 'id' parameter. Authenticated users with Contributor-level privileges or above can exploit this to inject arbitrary web scripts that execute in the context of other users viewing the injected page. This vulnerability affects all versions up to and including 2.0.7.1. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, required privileges at the contributor level, no user interaction, and impacts on confidentiality and integrity with no availability impact.

An attacker with Contributor-level access or higher can inject persistent malicious scripts into pages, which execute in the browsers of users who visit those pages. This can lead to unauthorized actions or data disclosure within the context of the affected site. The impact affects confidentiality and integrity but does not affect availability. There are no known exploits in the wild at this time.

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 limiting use of the affected plugin. Monitor for updates from the vendor or plugin author regarding patches or official mitigations.