Cross-Site Scripting in Drupal Search API Autocomplete

Executive Summary

This is a reflected cross-site scripting (XSS) vulnerability in the Drupal Search API Autocomplete module. It occurs when user input is not properly neutralized during web page generation, allowing malicious scripts to be executed in a victim's browser.

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Detection Guidance

To detect this vulnerability, inspect Drupal sites using Search API Autocomplete versions 0.0.0 to 1.12.0. Check for reflected XSS by testing input fields with scripts like <script>alert(1)</script> and monitoring responses for script execution.

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Impact Analysis

An attacker could exploit this to steal sensitive data like session cookies, redirect users to malicious sites, or perform actions on behalf of users. It primarily affects users interacting with vulnerable Drupal sites using the Search API Autocomplete module.

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Compliance Impact

This vulnerability could lead to unauthorized data access or modification, potentially violating GDPR (data protection) or HIPAA (health data privacy) requirements. Organizations may face compliance penalties if exploited.

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Mitigation Strategies

Update Search API Autocomplete to a version beyond 1.12.0 to address the reflected XSS vulnerability.

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