This vulnerability in Huurkalender WP (versions ≤ 1.5.6) allows stored cross-site scripting due to improper input neutralization during web page generation. An attacker with at least low privileges and requiring user interaction could inject malicious scripts that execute in the context of other users, potentially leading to partial compromise of confidentiality, integrity, and availability. The CVSS vector indicates network attack vector, low attack complexity, privileges required, user interaction required, and scope change.

Successful exploitation could allow an attacker to execute arbitrary scripts in the context of affected users, potentially leading to information disclosure, modification of data, or disruption of service. The impact is rated medium based on the CVSS score of 6.5, reflecting limited but meaningful risks to confidentiality, integrity, and availability.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider restricting privileges to trusted users and applying input validation or sanitization workarounds if feasible. Monitor vendor channels for updates regarding patches or official mitigations.