The WP Carousel plugin by shapedplugin suffers from a stored XSS vulnerability (CWE-79) due to improper neutralization of input during web page generation. This allows authenticated users with contributor or higher privileges to inject arbitrary JavaScript code via the carousel widget, which is then stored and executed in the context of other users viewing the affected pages. The vulnerability impacts all plugin versions up to 2.6.3. The CVSS 3.1 vector indicates network attack vector, low attack complexity, requiring privileges, no user interaction, with scope changed and low confidentiality and integrity impacts but no availability impact.

An attacker with contributor-level access or higher can exploit this vulnerability to inject malicious scripts that execute in the browsers of users who view the compromised pages. This can lead to unauthorized actions performed on behalf of users, data theft, or session hijacking. The confidentiality and integrity impacts are rated low, and availability is not affected. There are no reports of active exploitation 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 disabling or limiting use of the vulnerable carousel widget. Monitor for plugin updates from shapedplugin and apply any official patches promptly once released.