CVE-2025-57940: 
WordPress vulnerability analysis and mitigation

CVE-2025-57940 is a Cross-site Scripting (XSS) vulnerability discovered in the WordPress plugin 'Append extensions on Pages' affecting versions through 1.1.2. The vulnerability was discovered by Nabil Irawan and publicly disclosed on September 22, 2025. This stored XSS vulnerability affects the plugin developed by Suresh Kumar Mukhiya (Patchstack).

The vulnerability is classified as a stored Cross-site Scripting (XSS) issue, categorized under CWE-79 (Improper Neutralization of Input During Web Page Generation). It has received a CVSS v3.1 score of 5.9 (Medium), with the vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L. The vulnerability requires high privileges and user interaction to be exploited (NVD).

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 visitors access the affected site (Patchstack).

As of the disclosure date, no official fix is available for this vulnerability. The software is considered abandoned, having not received updates for over a year. The recommended mitigation strategy is to remove and replace the plugin with an alternative solution (Patchstack).