Scan engine extension for customizing application security testing behavior

Abstract

Various embodiments include implementing an interceptor for application security testing. The interceptor may intercept traffic, including one or more traffic items, between a scan engine and a target application. The traffic item(s) may include a request directed to the target application from a scan engine implementing application security testing or a response from the target application responsive to request(s) from the scan engine. The interceptor may determine that a particular traffic item satisfies a particular traffic trigger associated with a particular traffic action comprising a manipulation to the traffic between the scan engine and the target application. The particular traffic action is one of a plurality of predefined traffic actions that the interceptor is configured to perform across different scan engine versions, different scan configurations, or both. Responsive to determining that the particular traffic item satisfies the particular traffic trigger, the interceptor may perform the particular traffic action.