xxexploiter vs ysoserial: 2026 Comparison
xxexploiter is a free penetration testing tool. ysoserial is a free penetration testing tool. Compare features, ratings, integrations, and community reviews side by side to find the best penetration testing fit for your security stack.
CST VerdictBased on our analysis of available product data, here is our conclusion:
Penetration testers validating XXE patch coverage across legacy applications will find xxexploiter invaluable for its speed; you craft the payload once and iterate across dozens of endpoints without rebuilding exploitation logic each time. The free price point and 565 GitHub stars indicate it's proven in real assessments, not theoretical. Skip this if your scope includes modern APIs or frameworks that reject malformed XML outright; xxexploiter assumes you're already past basic input validation and targeting systems with actual parsers.
Penetration testers and red teamers validating Java deserialization vulnerabilities need ysoserial for its breadth of gadget chains; with 8,501 GitHub stars and active community contributions, it remains the de facto standard for generating CVE-2015-6420 and related payloads across legacy and modern Java frameworks. The tool's strength lies in its ability to craft working exploits against unsafe ObjectInputStream implementations without requiring live target interaction during payload generation. Skip this if your scope is limited to .NET or Python applications, or if you need a guided UI; ysoserial is command-line native and demands familiarity with Java serialization mechanics.
