Web App Attacks

File Upload Attacks

Chapter 7 of 12 · Web App Attacks 58%
Hands-on Lab

File Upload Bypass

Practice what you learn in this chapter! This dedicated lab gives you a real vulnerable server to legally exploit using the exact techniques from this chapter.

Challenge 50 XP 1 flag 58% success
Skills You'll Practice:
File UploadWeb SecurityBypass TechniquesPHPWeb ShellsInput ValidationSocial EngineeringPost Exploitation
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📁 A .phar extension bypass in class.upload.php gave full RCE on thousands of Joomla sites, can you spot the same flaw?

MIME spoofing, double extensions, polyglot files, and Content-Type manipulation turn a file upload form into a web shell dropper, practice these bypasses before your next pentest 🔥

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