# devploit/nomore403

🚫 Advanced tool for security researchers to bypass 403/40X restrictions through smart techniques and adaptive request manipulation. Fast. Precise. Effective.

Repository: https://github.com/devploit/nomore403
Canonical: https://ross.abutalabs.com/products/nomore403
Language: Go
License: MIT
License Family: permissive
Topics: waf-bypass, pentesting, websec, bugbounty, ctf, 403, 403-bypass, bypass, go, http, pentest, reconnaissance, security, tool
Last push: 2026-06-21T10:19:20+00:00

## Health v2 (maintenance only)
Score: 87/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 88, release rhythm 79, longevity 100
- inputs: {"age_days": 1829, "days_push": 73, "days_rel": 143, "gap_med": 1.0, "n_releases_24m": 13}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1842, forks 218 (observed 2026-08-28T04:05:43.220916+00:00)

## What it is
NoMore403 is a Go command-line tool that automates testing of HTTP 401/403 access-control bypasses via request path, method, header, and wire-format mutations. It baselines responses, calibrates to reduce false positives, and outputs scored, replayable findings.

## Use cases
- bypass 403 forbidden pages on a target
- find WAF or CDN parser inconsistencies
- test access-control rules during a pentest
- bug bounty recon on restricted endpoints
- CTF challenges involving 403 bypasses
- regression test web app access-control rules

## When to choose
- you need automated, scored 403/401 bypass testing with low false positives
- you want replayable curl evidence for findings
- you need JSON output for security pipelines

## When to avoid
- you expect it to break authentication or exploit vulnerabilities by itself
- you need a GUI or non-HTTP protocol testing

## Facets
- artifact type: cli-tool
- maturity: active
- function: security, http-client, testing
- domain: security, penetration-testing
- platform: cli, windows, go
- tags: 403-bypass, waf-bypass, bugbounty, pentesting, ctf, linux, macos

## Member repositories
- devploit/nomore403 (main) score 87

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:43.220916+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:17:59.362860+00:00, confidence not recorded.
  - readme: https://github.com/devploit/nomore403 (fetched 2026-08-28T04:05:43.220916+00:00, sha ce23e9a078bd)
- Data as of 2026-08-30T08:39:29.467469+00:00.