CVE-2025-53559: 
WordPress vulnerability analysis and mitigation

A Cross-site Scripting (XSS) vulnerability was discovered in LambertGroup Universal Video Player - Addon for WPBakery Page Builder, identified as CVE-2025-53559. The vulnerability affects versions through 3.2.1 of the plugin and was disclosed on July 23, 2025. The security researcher 0xd4rk5id3 identified this reflected XSS vulnerability, which stems from improper neutralization of input during web page generation (Patchstack).

The vulnerability has been assigned 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. This indicates that the vulnerability is network-accessible, requires low attack complexity, needs no privileges, but does require user interaction. The vulnerability is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation) (Patchstack).

The vulnerability could allow malicious actors to inject malicious scripts, including redirects, advertisements, and other HTML payloads into the affected website. These injected scripts would be executed when visitors access the compromised site (Patchstack).

Users are advised to update to version 3.2.2.0 or later to resolve the vulnerability. Patchstack has issued a virtual patch to mitigate this issue by blocking attacks until users can update to a fixed version. The vulnerability should be mitigated or resolved immediately to ensure system security (Patchstack).