CVE-2025-23531

Vulnerability

Overview

A reflected cross-site scripting (XSS) vulnerability exists in the WordPress RSVPMaker Volunteer Roles plugin, versions up to and including 1.5.1 [1]. The issue arises from improper neutralization of user-supplied input during web page generation, enabling attackers to inject arbitrary HTML or JavaScript code into the response [1].

Exploitation

Path

The vulnerability is classified as reflected XSS, meaning exploitation requires a privileged user to interact with a crafted link or form [1]. The attacker does not need special privileges, but the victim must perform some action, such as clicking a malicious URL or visiting a specially crafted page [1]. This type of attack can be carried out via a standard HTTP request that reflects the injected payload back to the victim's browser.

Impact

Successful exploitation could allow an attacker to inject malicious scripts, including redirects, advertisements, or other HTML payloads [1]. These scripts execute in the context of the victim's browser when they visit the affected site, potentially leading to session hijacking, credential theft, or defacement [1]. The CVSS v3 score is 7.1, reflecting moderate to high severity [1].

Mitigation and

Status

The vulnerability is expected to become exploited and may be used in mass campaigns [1]. As an immediate action, users should update the plugin to a patched version if available. If not possible, administrators should consider implementing a web application firewall rule or contact their hosting provider for assistance [1]. Patchstack has also issued a mitigation rule until an official fix is confirmed [1].