The vulnerability identified as CVE-2025-23531 affects the RSVPMaker Volunteer Roles plugin by davidfcarr. It is a reflected cross-site scripting (XSS) flaw caused by improper neutralization of input during web page generation. This allows attackers to inject malicious scripts that execute in the context of the victim's browser when they interact with crafted content. The CVSS 3.1 base score is 7.1, indicating a high severity with network attack vector, low complexity, no privileges required, user interaction needed, and impacts on confidentiality, integrity, and availability. The affected versions include all versions up to 1.5.1. There is no information about an available patch or vendor advisory for remediation.

Successful exploitation of this reflected XSS vulnerability can lead to partial compromise of confidentiality, integrity, and availability of the affected system or user data. Attackers could execute arbitrary scripts in the context of users' browsers, potentially leading to session hijacking, defacement, or other malicious actions. However, exploitation requires user interaction and the vulnerability is limited to versions up to 1.5.1 of the plugin.

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 removing the vulnerable plugin or applying any available temporary mitigations recommended by the vendor. Additionally, applying web application firewalls (WAF) rules that detect and block reflected XSS payloads may reduce risk. Monitor vendor channels for updates regarding an official patch.