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Replit Security Guide
Q&AReplit

Can Replit apps be hacked?

Replit apps can be vulnerable to common web attacks like XSS, SQL injection, and insecure API endpoints, just like any other web application. The collaborative nature of Replit means code is often written quickly without thorough security review, which can introduce weaknesses. Public Repls expose source code by default, potentially revealing logic flaws or hardcoded credentials to anyone browsing the platform. Attackers can also target the deployment infrastructure if environment variables or secrets are misconfigured. UNPWNED scans Replit-hosted applications for these vulnerabilities and provides actionable remediation steps.

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Last reviewed: 2026-04-07. Based on publicly available security research and UNPWNED scan telemetry.