The WPZOOM Shortcodes plugin for WordPress suffers from a stored cross-site scripting vulnerability (CWE-79) in its 'box' shortcode due to improper neutralization of input during web page generation. This allows authenticated attackers with contributor or higher privileges to inject malicious scripts via user-supplied shortcode attributes. These scripts execute in the context of any user viewing the compromised page, potentially leading to session hijacking or other script-based attacks. The vulnerability affects all versions up to 1.0.5. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, required privileges at the contributor level, no user interaction, and impacts on confidentiality and integrity but not availability.

An attacker with contributor-level access or higher can inject persistent malicious scripts into pages via the vulnerable shortcode. These scripts execute in the browsers of users who view the infected pages, potentially compromising user sessions or data confidentiality and integrity. There is no indication of availability impact. No known active exploitation has been reported.

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 WPZOOM Shortcodes plugin if possible. Monitor for updates from the vendor regarding patches or official mitigations.