This paper presents a comprehensive analysis of a security vulnerability discovered in CapCut (a short-video editing mobile/web app), the impact and exploitability of the bug, and a step-by-step remediation plan suitable for a bug-bounty submission and for developers to implement. The vulnerability is treated generically as an insecure file-handling / arbitrary file upload leading to remote code execution (RCE) and/or unauthorized access — a common high-impact class for media/web apps. Replace specifics (endpoints, parameter names, PoC payloads) with your actual findings before submission.
Critical: Up to $15,000 or more for severe vulnerabilities like RCE without user interaction . Common "Security Notice" Fixes for Users capcut bug bounty fix
Developers trace the issue—often in legacy code from CapCut’s rapid feature rollout (e.g., “Remove BG,” “Cloud Sync,” or “Team Collaboration” features). Many past fixes have involved: Detailed Paper: Fixing a CapCut Bug Bounty Vulnerability
Title: [CapCut vX.X.X] Remote Code Execution via Malicious Template (Suggestion for Fix) Critical: Up to $15,000 or more for severe
Takeaway for Devs: When building platforms that handle user-generated content, never trust client-side data. Always verify permissions on the backend. This one oversight could have cost users their privacy.
