Stumble! for WordPress Reflected Cross-Site Scripting Vulnerability

A reflected cross-site scripting vulnerability has been identified in the Stumble! for WordPress plugin, affecting all versions up to and including 1.1.1. The issue arises from inadequate input sanitization and output escaping, allowing unauthenticated attackers to inject arbitrary web scripts. These scripts could be executed if the attacker successfully persuades a user to perform an action, such as clicking a link.

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.

Reproduction

To reproduce this vulnerability, send a request to a WordPress site with the Stumble! for WordPress plugin version 1.1.1 or earlier. Include a crafted URL that exploits the vulnerability by injecting script elements through the 'PHP_SELF' variable. This can be done by tricking a user into clicking the link, which will then execute the injected script in their browser.

Remediation

No known patch is available for this vulnerability. It is recommended to uninstall the affected plugin and find a replacement.