CVE-2025-53991

Vulnerability

Overview

CVE-2025-53991 is a stored cross-site scripting (XSS) vulnerability found in the Crocoblock JetTricks plugin for WordPress, affecting versions from n/a through 1.5.4.1. The root cause is improper neutralization of user-supplied input during web page generation, allowing stored XSS attacks [1].

Exploitation

Prerequisites

To exploit this vulnerability, an attacker must be a privileged user (such as an editor or administrator) who can submit input that is later rendered on the site. When other users (including site visitors) access the affected page, the injected script executes in their browser. The vendor's advisory notes that while the attacker must already have a privileged role, successful exploitation also requires a privileged user to perform an action such as clicking a malicious link or submitting a crafted form [1].

Impact

Successful exploitation allows a malicious actor to inject arbitrary HTML and JavaScript, which could be used to redirect visitors, display advertisements, steal session cookies, or deface the site. This type of vulnerability is particularly concerning because it can be leveraged in mass-exploit campaigns targeting thousands of websites simultaneously [1].

Mitigation

The vulnerability is fixed in JetTricks version 1.5.4.2. Users should update immediately. The vendor's advisory also recommends enabling auto-updates for vulnerable plugins as a best practice [1].