CVE-2025-24688: 
WordPress vulnerability analysis and mitigation

A Reflected Cross-Site Scripting (XSS) vulnerability was discovered in the WP Mailster WordPress plugin, identified as CVE-2025-24688. The vulnerability affects versions through 1.8.20.0 of the WP Mailster plugin and was disclosed on January 28, 2025. The security issue was discovered by researcher 0xd4rk5id3 and involves improper neutralization of input during web page generation (Patchstack).

The vulnerability has been assigned a CVSS v3.1 base score of 7.1 (HIGH) with the following vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L. The vulnerability is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation). It is an unauthenticated vulnerability, meaning it can be exploited without requiring user authentication (NVD, Patchstack).

This vulnerability could allow malicious actors to inject malicious scripts, including redirects, advertisements, and other HTML payloads into the website. These injected scripts would be executed when guests visit the affected site, potentially compromising user security and website integrity (Patchstack).

Users are advised to update to WP Mailster version 1.8.21.0 or later to resolve the vulnerability. For users of Patchstack, a virtual patch has been issued to mitigate this issue by blocking potential attacks until the update can be applied (Patchstack).