ExpressTech Software MemberPress Discord Addon Reflected Cross-Site Scripting Vulnerability

A reflected cross-site scripting vulnerability has been identified in the ExpressTech Software MemberPress Discord Addon, affecting versions through 1.1.4. This vulnerability arises from improper input sanitization during web page generation, allowing malicious actors to inject and execute harmful scripts on the site.

Impact

Exploitation of this vulnerability allows for reflected cross-site scripting, where an attacker can inject malicious scripts that are executed when users visit the affected site. This could lead to the injection of harmful payloads, such as redirects or advertisements.

Remediation

Users are advised to update to the latest version of the ExpressTech Software MemberPress Discord Addon. For those using Patchstack, a mitigation rule has been issued to block attacks until an official fix is available.