The WP Easy Post Mailer plugin for WordPress, developed by Richard Leishman, contains a reflected cross-site scripting vulnerability (CVE-2025-23956) due to improper input neutralization during web page generation. This flaw affects all versions up to 0.64. An attacker could exploit this vulnerability by crafting a malicious link that, when visited by a user, executes arbitrary scripts in the user's browser session. The vulnerability has a CVSS 3.1 base score of 7.1, reflecting network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and low impact on confidentiality, integrity, and availability.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the victim's browser, potentially leading to information disclosure, session hijacking, or other malicious actions impacting confidentiality, integrity, and availability. However, 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 disabling or removing the WP Easy Post Mailer plugin if it is not essential. Additionally, applying web application firewall (WAF) rules that detect and block reflected XSS attempts may provide temporary mitigation.