The Kudos Donations – Easy Donations with Mollie WordPress plugin suffers from a reflected XSS vulnerability via the 's' parameter due to improper neutralization of input during web page generation. This allows unauthenticated attackers to inject malicious scripts that execute when a user clicks a crafted link. The issue affects all versions up to and including 3.2.9. The CVSS 3.1 base score is 6.1 (medium severity), with network attack vector, low attack complexity, no privileges required, and user interaction needed. Confidentiality and integrity impacts are low, with no availability impact. No patch or remediation details are provided in the available data.

Successful exploitation can lead to execution of arbitrary scripts in the context of the affected website, potentially allowing attackers to steal user session data, perform actions on behalf of the user, or conduct phishing attacks. The impact is limited to confidentiality and integrity with no direct availability impact. The vulnerability requires user interaction and does not require authentication.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider disabling or restricting use of the affected plugin or applying web application firewall (WAF) rules to block malicious input targeting the 's' parameter. Monitor vendor channels for updates and apply patches promptly once released.