The Gutenverse News plugin for WordPress suffers from a stored XSS vulnerability via the 'elementId' parameter due to improper input neutralization during web page generation. Authenticated attackers with Contributor or higher privileges can inject arbitrary JavaScript that executes in the context of users viewing the infected pages. This vulnerability affects all versions up to and including 1.0.4. 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.

Successful exploitation allows an attacker with Contributor-level access to inject persistent malicious scripts into pages generated by the plugin. These scripts execute in the browsers of users who visit the compromised pages, potentially leading to unauthorized actions or data disclosure within the context of the affected site. The impact is limited to confidentiality and integrity, with no direct availability impact reported. No known active exploitation has been observed.

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 removing the Gutenverse News plugin if possible. Monitor for updates from jegstudio regarding a security patch addressing this vulnerability.