ProbiusOfficial / Hello-CTF

【Hello CTF】题目配套，免费开源的CTF入门教程，针对0基础新手编写，同时兼顾信息差的填补，对各阶段的CTFer都友好的开源教程，致力于CTF和网络安全的开源生态！

OWASP / wrongsecrets

Vulnerable app with examples showing how to not use secrets

ZeroDayEvil / ai-security-tool

🛡️ Free open-source AI-powered security terminal & vulnerability scanner (CVE, SBOM). Supports SSH, SFTP, RDP, VNC, Serial, and 12+ autonomous AI agents (DeepSeek, OpenAI) for automated security workflows, CTF & DevSecOps. Cross-platform & Web UI.

m0m0x01d / strata

See why a web vulnerability works, not just how to trigger it — a single-file, zero-dependency security lab that renders a vulnerable app as a 7-layer cross-section. 17 labs, attacker & defender modes, AI-authorable.

mahaloz / ilio-mini

A tiny infrastructure for Codex to solve CTF challenges in reverse engineering. 3rd in Flare-On 13.