CVE-2025-57959: 
WordPress vulnerability analysis and mitigation

A Cross-site Scripting (XSS) vulnerability has been identified in tmatsuur Slightly troublesome permalink plugin through version 1.2.0. The vulnerability was discovered on September 22, 2025, and was assigned identifier CVE-2025-57959. This security issue affects the WordPress plugin Slightly troublesome permalink up to and including version 1.2.0 (NVD, Patchstack).

The vulnerability is classified as a Stored Cross-site Scripting (XSS) issue, identified as CWE-79 (Improper Neutralization of Input During Web Page Generation). The CVSS v3.1 base score is 5.9 (Medium), with the following vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L. The vulnerability requires administrator privileges to exploit (NVD, Patchstack).

If exploited, this vulnerability could allow a malicious actor 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 (Patchstack).

No official fix is available for this vulnerability. The recommended mitigation is to remove and replace the software with an alternative solution, as the plugin is considered abandoned and unlikely to receive future updates or security fixes (Patchstack).