CVE-2025-24598: 
WordPress vulnerability analysis and mitigation

A Reflected Cross-Site Scripting (XSS) vulnerability was discovered in brandtoss WP Mailster, affecting versions through 1.8.17.0. The vulnerability was initially reported on November 26, 2024, and was publicly disclosed on December 26, 2024. This security issue was assigned CVE-2025-24598 and affects the WordPress plugin WP Mailster (Patchstack).

The vulnerability is classified as an Improper Neutralization of Input During Web Page Generation (CWE-79) issue. It received a CVSS v3.1 base score of 7.1 (High) from Patchstack and 6.1 (Medium) from NIST, with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. The vulnerability can be exploited without authentication, making it particularly concerning (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 visitors access the affected site, potentially compromising user data and website integrity (Patchstack).

The vulnerability has been fixed in version 1.8.18.0 of the WP Mailster plugin. Users are advised to update to this version or later immediately. For Patchstack users, a virtual patch has been issued to mitigate this issue by blocking potential attacks until the update can be applied. Additionally, users can enable auto-update for vulnerable plugins through Patchstack (Patchstack).