The security team was polite and acknowledged the validity
including:
# Vulnerable: Checks if template exists, but does not verify ownership @app.route('/api/template/update', methods=['POST']) def update_template(): template_id = request.json.get('template_id') new_data = request.json.get('data') db.execute("UPDATE templates SET data = ? WHERE id = ?", (new_data, template_id)) return "status": "success" Use code with caution. The Fix: Session-Based Access Control Lists (ACL) capcut bug bounty fix
The financial rewards are compelling—with critical vulnerabilities earning up to 200,000 yuan—but the true value lies in contributing to the security of a platform used by hundreds of millions of creators worldwide. Whether you're hunting business logic flaws in subscription validation, fuzzing media parsing libraries, or discovering API misconfigurations, your work makes CapCut safer for everyone.
Maintain a strict allowlist of permitted domains and protocols (e.g., only allowing https:// ). Ensure the backend media-fetching service runs isolated from the core internal network, blocking requests to loopback addresses ( 127.0.0.1 ) and private IP ranges (RFC 1918). The security team was polite and acknowledged the
Vulnerabilities are rated using the Common Vulnerability Scoring System (CVSS). Critical bugs—such as Remote Code Execution (RCE) or broad Server-Side Request Forgery (SSRF)—fetch the highest payouts, while low-severity issues like descriptive error messages receive nominal rewards or points. 2. Common CapCut Vulnerabilities and Their Fixes
Unlike some major tech companies that maintain product-specific bug bounty programs, ByteDance consolidates its vulnerability collection through the . ByteSRC serves as the central platform for receiving vulnerability and threat intelligence reports across ByteDance's entire product portfolio, including CapCut, TikTok, Douyin, and others. Whether you're hunting business logic flaws in subscription
Use this if the process took a while but eventually worked out.
Customized visual effects, stickers, and fonts require parsing complex file structures, making them prime targets for fuzzing. API and Cloud Synchronization
To confirm this wasn't just a local lag, I had to dig into the .