This module helps prevent security vulnerabilities by cleaning up duplicate query parameters in URLs. It automatically removes earlier instances of repeated parameters and redirects the user to the corrected URL.
The HTTP Parameter Pollution module is designed to mitigate HTTP Parameter Pollution issues.
It inspects incoming GET requests for duplicate query parameters and sanitizes the URL by removing earlier duplicates—keeping only the last occurrence of each parameter. When duplicates are found, the module rebuilds the query string and automatically redirects the user to the cleaned URL.
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