CVE-2025-49873: 
WordPress vulnerability analysis and mitigation

A Cross-Site Scripting (XSS) vulnerability was identified in NasaTheme Elessi WordPress theme, tracked as CVE-2025-49873. The vulnerability affects versions through 6.3.9 and was discovered and disclosed on June 20, 2025. This reflected XSS vulnerability exists in the theme's web page generation functionality (NVD, 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) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L, indicating that it can be exploited remotely with low attack complexity and requires no privileges (NVD, Patchstack).

The vulnerability allows attackers 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, potentially compromising user security and website integrity (Patchstack).

Users are advised to update to version 6.4.1 or later, which contains the fix for this vulnerability. Additionally, Patchstack has issued a virtual patch to mitigate this issue by blocking potential attacks until users can update to the fixed version (Patchstack).