injection
Intermediate level
4SQL Injection — complete methodology with time-based, UNION and RCE
Detection via isomorphic queries, time-based payloads for 4 engines, escalation to RCE (xp_cmdshell, INTO OUTFILE, UDFs) and cross-field bypasses.
XSS contexts — payloads per context (HTML, attribute, JS, URL, CSS)
How to identify the exact context where your input is injected and the payloads that escape each one: HTML body, HTML attribute, JS string, JS event, URL, CSS, JSON.
Command Injection — bypasses with spaces, encoding and backticks
Command injection in endpoints that pass input to the shell. Filter bypasses: ${IFS}, $@, ;|&, encoded null bytes, output redirection to a file.
NoSQL Injection — MongoDB, Firebase and operator bypasses
How to inject into NoSQL queries: $ne/$gt/$regex in MongoDB, auth bypass, blind extraction and differences from classic SQLi.
Advanced level
1Practice injection with real labs
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