Using Burp to Test for Code Injection Vulnerabilities - Port Swigger
Summary: PortSwigger's tutorial demonstrates detecting server-side code injection in Burp Suite using the OWASP NodeGoat training tool, where editing the afterTax parameter changed the response and entering 20 / 2 returned 10%. The walkthrough then shows the isFinite() function returning true, indicating user data is not strictly validated, and an nslookup command that would cause a connection to the tester's server.
Why it matters: The source states these flaws usually lead to complete compromise of the application's data and functionality, and often of the hosting server, which can then be used as a platform for further attacks against other systems.
Read the original at PortSwigger Research ↗
- Topics
- Vulnerabilities & Patching
- Related
- Attackers Exploit UnrealIRCd Flaw That Enables Server-Level Command Injection Cyber Risks · Nov 14, 2026U.S. CISA adds Check Point and UnrealIRCd flaws to its Known Exploited Vulnerabilities catalog Cyber Risks · Nov 14, 2026PostgreSQL Patches 52 Flaws, Including 22-Year-Old Bug Enabling Authenticated RCE Cyber Risks · Nov 13, 2026