The Cards for Beaver Builder plugin for WordPress suffers from a stored XSS vulnerability (CWE-79) due to improper neutralization of user-supplied input in the Cards widget. Authenticated users with contributor or higher privileges can inject arbitrary JavaScript that executes in the context of other users viewing the page. This vulnerability affects all versions up to and including 1.1.3. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, privileges required at the contributor level, no user interaction needed, and impacts on confidentiality and integrity but not availability.

An attacker with contributor-level access or higher can inject malicious scripts into pages via the vulnerable widget. These scripts execute in the browsers of users who view the infected pages, potentially leading to theft of session cookies, defacement, or other actions limited by the privileges of the victim user. The vulnerability does not impact availability. There are no known active exploits reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict contributor-level access to trusted users only and consider disabling or removing the Cards for Beaver Builder plugin if possible. Monitor official channels for updates or patches from the plugin author.