CVE-2025-52771

Vulnerability

Overview

The Video Expander plugin for WordPress, in versions up to and including 1.0, contains a stored Cross-Site Scripting (XSS) vulnerability. [1] The root cause is the improper neutralization of user-supplied input during web page generation, allowing malicious scripts to be stored and later executed in the context of other users' browsers.

Attack

Vector and Exploitation

The vulnerability requires a privileged user (e.g., an editor) to initiate the attack, typically by submitting crafted input that is not sanitized by the plugin. [1] Successful exploitation depends on user interaction: an administrator or other privileged user must perform an action such as clicking a malicious link or visiting a crafted page, which triggers the stored payload.

Impact

An attacker exploiting this flaw can inject arbitrary HTML and JavaScript into the WordPress site. This could lead to redirects, advertisements, data theft, or other malicious actions whenever a guest visits the affected page. [1] The CVSS v3.0 base score of 6.5 reflects the medium severity of this vulnerability.

Mitigation

Users should immediately update the Video Expander plugin to a patched version if available. [1] If updating is not possible, it is recommended to contact the hosting provider or a web developer for alternative mitigation steps.