NotFound UTM Tags Tracking for Contact Form 7 Reflected Cross-Site Scripting Vulnerability

A reflected cross-site scripting vulnerability has been identified in the NotFound UTM tags tracking feature for the Contact Form 7 WordPress plugin, affecting versions through 2.1. This vulnerability arises from improper input sanitization during web page generation, allowing malicious actors to inject scripts that could be executed when users visit the site.

Impact

Exploitation of this vulnerability allows for reflected cross-site scripting, where an attacker can inject malicious scripts that are executed in the context of the user's browser.

Remediation

Users of the NotFound UTM tags tracking for Contact Form 7 WordPress plugin are advised to update to a version later than 2.1, if available. For those who cannot update immediately, Patchstack has issued a virtual patch that blocks attacks targeting this vulnerability.