The WP Mermaid WordPress plugin (versions up to 1.0.2) suffers from a stored cross-site scripting vulnerability due to improper input neutralization during web page generation. This allows attackers with at least low privileges and requiring user interaction to inject malicious scripts that can compromise confidentiality, integrity, and availability to a limited extent. The CVSS vector indicates network attack vector, low attack complexity, privileges required, user interaction required, and scope changed, with low impact on confidentiality and integrity and low impact on availability.

Successful exploitation of this vulnerability could allow an attacker with low privileges to inject and store malicious scripts that execute in the context of other users' browsers. This can lead to partial compromise of user data confidentiality and integrity, as well as limited impact on availability. However, exploitation requires user interaction and some privileges, limiting the attack scope. No known active exploits have been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider restricting plugin usage to trusted users and avoid exposing the plugin to untrusted input. Monitor official sources for updates and apply patches promptly once released.