CVE-2025-52799

Vulnerability

Overview

A reflected Cross-Site Scripting (XSS) vulnerability exists in the designthemes LMS theme for WordPress, affecting versions up to and including 9.2. The issue stems from improper neutralization of user input during web page generation, allowing an attacker to inject arbitrary JavaScript or HTML into a page response. [1]

Exploitation

Conditions

Exploitation requires user interaction, such as clicking a malicious link or visiting a specially crafted page. The attacker does not need authentication, but the victim must be a privileged user (e.g., administrator) to trigger the payload. This vulnerability is considered moderately dangerous and is expected to be used in mass-exploit campaigns targeting thousands of WordPress sites. [1]

Impact

Successful exploitation enables an attacker to execute arbitrary scripts in the context of the victim's browser. This can lead to session hijacking, redirection to malicious sites, defacement, or injection of unwanted advertisements and other HTML payloads. [1]

Mitigation

The vendor has released version 9.3, which fixes the vulnerability. Users are strongly advised to update immediately. If updating is not possible, a mitigation rule may be applied via security plugins like Patchstack to block attacks until the update is applied. [1]