Dheerajmadhukar/4-ZERO-3

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1667 stars · 308 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

4-ZERO-3 is a Bash-based security testing script that automates a wide range of techniques for bypassing HTTP 403/401 access restrictions on web endpoints. It supports header, protocol, port, HTTP method, URL encoding, and SQLi/WAF bypass payload categories, printing cURL payloads for any successful bypass.

Use cases

• bypass 403 forbidden errors on a target URL
• test 401 unauthorized endpoints with alternate headers and methods
• automate WAF and mod_security bypass attempts during pentests
• check if a secret endpoint is accessible via protocol or port tricks
• generate cURL payloads for access control testing
• run a full exploit scan against a restricted path during bug bounty recon

When to choose

• you are doing authorized penetration testing or bug bounty recon on web endpoints
• you want a quick, dependency-light Bash tool that only needs curl
• you need to enumerate many 403/401 bypass techniques in one automated run

When to avoid

• you do not have authorization to test the target system
• you need a full-featured web vulnerability scanner rather than a focused bypass tool
• you require a maintained tool with recent updates and active issue support
• you need a GUI or non-Bash environment such as Windows without a POSIX shell

Facets

cli-tool · maturity maintenance

penetration-testing http-client security cli security penetration-testing web-development cli 403-bypass 401-bypass waf-bypass bug-bounty recon curl bash-script offensive-security command-line linux macos

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markdown · JSON · MCP: product_card(name="Dheerajmadhukar/4-ZERO-3")