CVE-2024-3671 is a stored cross-site scripting vulnerability in the Print-O-Matic WordPress plugin (baden03) affecting all versions up to 2.1.10. The issue arises from improper input sanitization and output escaping on user-supplied attributes in the 'print-me' shortcode, specifically the 'tag' attribute. Authenticated attackers with contributor or higher privileges can inject arbitrary JavaScript that executes in the context of users visiting the compromised pages. This vulnerability can lead to limited confidentiality and integrity impacts without affecting availability.

Successful exploitation allows authenticated users with contributor-level access or higher to inject persistent malicious scripts into pages. These scripts execute in the browsers of users who view the infected pages, potentially compromising user sessions or performing unauthorized actions within the context of the affected site. The CVSS vector indicates network attack vector, low attack complexity, privileges required, no user interaction, and impacts on confidentiality and integrity but not 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 Print-O-Matic plugin if possible. Monitor for plugin updates from the vendor that address this vulnerability.