The Easy Google Maps plugin for WordPress suffers from a stored cross-site scripting vulnerability (CWE-79) due to improper neutralization of input during web page generation. Specifically, the plugin's file upload feature does not adequately sanitize or escape user input, allowing authenticated users with Author-level privileges or higher to inject arbitrary scripts. These scripts execute in the context of any user who visits the compromised page, potentially leading to session hijacking or other script-based attacks. This affects all versions up to and including 1.11.15. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, privileges required, no user interaction, and partial impact on confidentiality and integrity.

An attacker with Author-level access or higher can inject persistent malicious scripts into pages via the file upload feature. These scripts execute in the browsers of users who view the infected pages, potentially compromising user sessions or data confidentiality and integrity. The vulnerability does not affect availability. No known active exploitation has been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict Author-level access to trusted users only and consider disabling or limiting the use of the file upload feature in the Easy Google Maps plugin to reduce risk.