CVE-2024-3550 is a stored cross-site scripting vulnerability in the WP Shortcodes Plugin — Shortcodes Ultimate for WordPress, affecting all versions up to 7.1.2. The issue is due to improper neutralization of input during web page generation, specifically insufficient sanitization and escaping of user-supplied shortcode attributes. This allows authenticated users with contributor-level access or higher to inject arbitrary JavaScript code that executes in the context of other users viewing the injected pages. The vulnerability is classified under CWE-79 and has a CVSS 3.1 base score of 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N).

An attacker with contributor-level or higher privileges can exploit this vulnerability to perform stored cross-site scripting attacks, potentially leading to partial confidentiality and integrity impacts by executing arbitrary scripts in the context of other users. This could allow actions such as session hijacking or content manipulation within affected pages. There is no impact on availability. No known exploits have been reported in the wild.

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 removing or disabling the vulnerable plugin to prevent exploitation. Monitor official gn_themes communications for updates regarding patches or mitigations.