Meder Kydyraliev has reported a weakness in OWASP Stinger, which can be exploited by malicious people to bypass certain security restrictions.
The weakness is caused due to the improper handling of multipart encoded requests, e.g. by the "getParameterNames()" and "getParameter()" functions. This can be exploited to bypass input validation checks performed e.g. by the "checkMalformedParameters()" function when multipart encoded requests are used.
The vulnerability is reported in versions prior to 2.5.
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