hunt-captcha-bypass SKILL.md skillA
hunt-captcha-bypass from novaestellar/novahaku is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add novaestellar/novahaku/hunt-captcha-bypass@git:20260910.546fe86Pins git:20260910.546fe86 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- novaestellar/novahaku
- Path
testing/hunt/hunt-captcha-bypass/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260910.546fe86, committed Sep 10, 2026
- First version recorded
- Sep 3, 2026
- Size
- 6,123 bytes
- Repository stars
- 28
- License
- MIT
Hunt CAPTCHA Bypass — 6 distinct patterns: (1) CAPTCHA field simply omitted from the request (server-side validation absent), (2) CAPTCHA token replayed from a solved challenge (no single-use enforcement), (3) CAPTCHA response accepted on a different endpoint than it was solved on (no binding to action/session), (4) static or predictable CAPTCHA values accepted (e.g. '0', 'null', empty string), (5) audio/accessibility CAPTCHA trivially solvable programmatically, (6) CAPTCHA only enforced after…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
## Autonomous Testing Priority **The fastest test: just omit the CAPTCHA field entirely. Most CAPTCHA bypass bugs are client-side-only validation.** **Pattern 1 — Omit the CAPTCHA field (most common, most automatable):** 1. GET the form/endpoint that shows a CAPTCHA to understand its field name (usually `g-recaptcha-response`, `captcha`, `captcha_token`, `captcha_answer`, `h-captcha-response`) 2. POST the form with ALL fields EXCEPT the CAPTCHA field 3. If the action succeeds (200, redirect, or "success" message) → no server-side CAPTCHA validation 4. Proof: the state-changing action completes without a valid CAPTCHA field (compare against a baseline request that includes it) **Pattern 2 — Empty or null CAPTCHA value:** Instead of omitting the field entirely, include it with an empty string, `null`, `0`, or `undefined`: ``` captcha=&email=test@example.com&password=test123 ``` Some apps validate field presence but not content. **Pattern 3 — Replay a previously solved CAPTCHA token:** 1. Complete one legitimate CAPTCHA challenge and capture the `g-recaptcha-response` token 2. Submit a second request immediately with the SAME token value …
Read the whole file at its exact version.
How to install
mdr add novaestellar/novahaku/hunt-captcha-bypass@sha256:edcfa9f15f729ab5The line at the top of this page pins the label git:20260910.546fe86, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_bzegdihnuxs2q3ir)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 3, 2026 and Sep 10, 2026, about one every 3 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260910.546fe86 latest | 2026-09-10 | 546fe86 | 6,123 B | A | view · diff |
| git:20260903.29924dd | 2026-09-03 | 29924dd | 6,135 B | A | view · diff |
| git:20260903.fa855c4 | 2026-09-03 | fa855c4 | 6,106 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6123 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
novaestellar/novahaku · 28 stars · license MIT · pushed 2026-09-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bzegdihnuxs2q3ir GET https://markdownregistry.com/api/v1/resolve?ref=novaestellar/novahaku/hunt-captcha-bypass GET https://markdownregistry.com/api/v1/blob/edcfa9f15f729ab5f1c785c5e9c7abda1548b4e488697ff7502a99c9a7c6abff
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.