CVE-2024-11119 is a stored cross-site scripting vulnerability in the BNE Gallery Extended plugin for WordPress. It affects all versions up to and including 1.2.1. The issue stems from improper neutralization of input during web page generation, specifically in the 'gallery' shortcode, where user-supplied attributes are not properly sanitized or escaped. Authenticated users with contributor-level permissions or higher can exploit this to inject arbitrary JavaScript that executes in the context of other users viewing the page.

Successful exploitation allows an authenticated contributor or higher to inject persistent malicious scripts into pages using the vulnerable shortcode. This can lead to unauthorized actions performed in the context of other users, potentially compromising confidentiality and integrity of user sessions. The CVSS vector indicates network attack vector, low attack complexity, privileges required at low level, no user interaction needed, and impacts confidentiality and integrity with no impact on availability.

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 removing the BNE Gallery Extended plugin if possible. Monitor official bluenotes communications for updates regarding patches or mitigations.