Drupal Avatar Uploader Cross-Site Scripting (XSS) Vulnerability Scanner

The Drupal Avatar Uploader plugin is designed for Drupal, a widely used content management system that enables web developers and site administrators to add customizable avatar uploading capabilities to their websites. This plugin is especially useful for social networking sites, forums, and any web platform that emphasizes user interaction and personalization. It allows users to upload and manage their profile pictures easily, enhancing the user experience by making it more engaging and personalized. This functionality is crucial for websites that prioritize user engagement and community building. It's developed and maintained by the Drupal community, highlighting its open-source nature.

The cross-site scripting vulnerability in the Drupal Avatar Uploader plugin arises from inadequate sanitization of user input in the slider import search feature and the tab parameter via plugin settings. This flaw allows attackers to inject malicious scripts into web pages viewed by other users. When exploited, it can lead to a range of issues, from minor nuisance to serious security breaches, including stealing session cookies or redirecting users to malicious sites. This type of vulnerability is particularly concerning because it directly impacts the end user, potentially compromising their security and privacy.

Specifically, the vulnerability is present in the avatar_uploader.pages.inc file, where user-supplied input is not properly sanitized before being returned to users. This lapse in security allows attackers to embed