Windsurf
api
Cascade File Upload Without Validation
Critical file upload vulnerability after Cascade removed file validation. Users can upload arbitrary files including executables or malicious scripts. Files are stored in web-accessible directory and can be executed on the server.
This is a critical security issue requiring immediate attention.
Error Messages You Might See
Arbitrary file uploaded: malicious.exe
Path traversal attack: ../../../etc/passwd
Disk full: 500GB used by uploads
File executed on server
Common Causes
- Cascade removed file type validation - accepts any file extension
- Files saved directly to web root without sanitization
- Cascade removed file size limits, allowing disk exhaustion
- Filenames not sanitized - can contain path traversal sequences (../)
How to Fix It
Validate file types by checking MIME type and extension whitelist. Limit file size (e.g., 10MB). Sanitize filenames to prevent path traversal. Store files outside web root if possible. Set proper permissions so files can't be executed. Virus scan uploads if dealing with user files. Generate random filenames.
Real developers can help you.
Nam Tran
10 years as fullstack developer
Jaime Orts-Caroff
I'm a Senior Android developer, open to work in various fields
Yovel Cohen
I got a lot of experience in building Long-horizon AI Agents in production, Backend apps that scale to millions of users and frontend knowledge as well.
Mehdi Ben Haddou
- Founder of Chessigma (1M+ users) & many small projects
- ex Founding Engineer @Uplane (YC F25)
- ex Software Engineer @Amazon and @Booking.com
PawelPloszaj
I'm fronted developer with 10+ years of experience with big projects. I have small backend background too
Jen Jacobsen
I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses.
I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain.
Vlad Temian
15+ years shipping production infrastructure for startups. Former CTO at qed.builders (acquired by The Sandbox).
Cursor ambassador and agentic tooling builder.
I've scaled systems, automated deployments, and built observability tools for AI coding workflows. I specialize in taking vibe-coded apps from broken prototype to production-ready: fixing Supabase auth/RLS, Stripe integrations, deployment pipelines, and cleaning up AI-generated spaghetti.
I build tools in this space (agentprobe, claudebin, micode) and understand both sides: how AI generates code and why it breaks.
https://blog.vtemian.com/
Antriksh Narang
5 years+ Experienced Dev (Specially in Web Development), can help in python, javascript, react, next.js and full stack web dev technologies.
ISHANTDEEP SINGH
Senior Software Engineer with 7+ years of experience in React, JavaScript, TypeScript, Next.js, and Node.js. I’ve also worked as a tech lead for startups, owning end-to-end technical execution including architecture, development, scaling, and delivery. I bring a strong mix of hands-on coding, product thinking, and technical leadership, and I’m comfortable building products from scratch as well as improving and scaling existing systems.
Rudra Bhikadiya
I build and fix web apps across Next.js, Node.js, and DBs.
Comfortable jumping into messy code, broken APIs, and mysterious bugs.
If your project works in theory but not in reality, I help close that gap.
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get Help