Gato vs XSSer: 2026 Comparison
Gato is a free penetration testing tool. XSSer 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:
DevSecOps teams running GitHub Actions at scale need Gato because it's the only tool that systematically maps and exploits CI/CD pipeline misconfigurations before attackers do. With 701 GitHub stars and active community validation, it's proven effective at exposing credential exposure and privilege escalation paths in workflow files that static scanners routinely miss. Skip this if your GitHub Actions usage is light or your CI/CD security program already includes runtime controls; Gato is purpose-built for teams treating pipeline compromise as a material risk, not a checkbox.
Penetration testers running frequent manual assessments against web applications will find XSSer's value in its speed; it automates the tedious work of fuzzing multiple XSS vectors across different contexts, cutting testing cycles from hours to minutes. The tool generates payloads for DOM-based, reflected, and stored XSS variants automatically, which matters when you're working through dozens of endpoints in a single engagement. Skip XSSer if your team needs post-exploitation capabilities or integrated remediation workflows; it's a lightweight scanner that finds the hole, not one that helps you map the broader attack surface or manage the fix pipeline.
