offensive-parameter-pollution skillB
offensive-parameter-pollution is agent-read markdown (skill) from miosa-osa/osa: HTTP parameter pollution (HPP) checklist: duplicate parameter injection, backend vs frontend parsing differences, WAF bypass via HPP, server-side vs client-side HPP, and practical exploitation patterns. Use when testing web applications for parameter handling flaws..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
How to install
mdr add miosa-osa/osa/offensive-parameter-pollution@git:20260913.e13b6b8mdr add miosa-osa/osa/offensive-parameter-pollution@sha256:c7e1f895b17ed49aPin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_33czh7pfiq6gsz4d)
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Versions
Audit of the latest version
- fail: No script tag (matched: <script)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (17852 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
Source
miosa-osa/osa · 57 stars · license NOASSERTION · pushed 2026-09-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_33czh7pfiq6gsz4d GET https://markdownregistry.com/api/v1/resolve?ref=miosa-osa/osa/offensive-parameter-pollution GET https://markdownregistry.com/api/v1/blob/c7e1f895b17ed49a7abb0c5715a590745e2f2070e47f9360e054c8a9e5929826
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