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Keyhacks is a repository which shows quick ways in which API keys leaked by a bug bounty program can be checked to see if they're valid.
Windows Local Privilege Escalation from Service Account to System
Exploitation paths allowing you to (mis)use the Windows Privileges to elevate your rights within the OS.
linuxprivchecker.py -- a Linux Privilege Escalation Check Script
Linux enumeration tool for pentesting and CTFs with verbosity levels
Linux privilege escalation auditing tool
Scripted Local Linux Enumeration & Privilege Escalation Checks
PEASS - Privilege Escalation Awesome Scripts SUITE (with colors)
A list of useful payloads and bypass for Web Application Security and Pentest/CTF