CVE-2025-48315: 
WordPress vulnerability analysis and mitigation

A Stored Cross-Site Scripting (XSS) vulnerability has been identified in the WordPress HTML plugin, tracked as CVE-2025-48315. The vulnerability affects versions up to 0.51 of the WordPress HTML plugin and was discovered by Muhammad Yudha - DJ. The issue was publicly disclosed on August 25, 2025, and requires authenticated access with Contributor-level privileges or higher to exploit (Patchstack).

The vulnerability is classified as an Improper Neutralization of Input During Web Page Generation (CWE-79) issue. It has received a CVSS v3.1 base score of 6.5 (Medium) with the following vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L. This indicates that the vulnerability requires network access, low attack complexity, low privileges, and user interaction to exploit (Patchstack).

The vulnerability allows malicious actors to inject malicious scripts, including redirects, advertisements, and other HTML payloads into the website. These injected scripts will be executed when visitors access the affected site. The software is considered abandoned, as it hasn't received updates for over a year, increasing the potential security risks (Patchstack).

As no official fix is available and the software is considered abandoned, the recommended mitigation strategy is to remove and replace the WordPress HTML plugin with an alternative solution. Deactivating the software alone does not remove the security threat unless a virtual patch is deployed (Patchstack).