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Common Owasp

Community
HoangNguyen0403
common-owasp

OWASP Top 10 audit checklists for Web Applications (2021), APIs (2023), and Mobile (2024). Use when performing any security review, PR review, or codebase audit touching web, mobile, or API code.

Overview

PublisherHoangNguyen0403
Repositoryagent-skills-standard
Skill namecommon-owasp
Stars
573
Forks
166
Bundled files
3
LicenseMIT
Links
Skill sourceRepositoryHomepage
  • Markdown instructions

    A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.

  • Works with any LLM

    AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.

  • 3 bundled files

    Scripts, templates, and references the model can read while it works. Files are read-only and never executed.

  • Open source

    Published by HoangNguyen0403 on GitHub. Read the source before you install it.

Installation

Install the Common Owasp AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

1

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

  1. Open the app and go to Plugins → Skills.
  2. Choose "Install from GitHub".
  3. Paste the skill folder URL below and confirm.
    https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/.agents/skills/common/common-owasp
  4. Enable the skill in any chat where you want it available.
Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.
2

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills
git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git /tmp/agent-skills-standard
mkdir -p .claude/skills
cp -r /tmp/agent-skills-standard/.agents/skills/common/common-owasp .claude/skills/common-owasp
Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Common Owasp in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Common Owasp on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Common Owasp is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

  • Loaded only when it is needed

    The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.

  • Switch models mid-chat

    Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

OWASP Top 10 Security Checklist

Priority: P0 (CRITICAL)

Always-Apply Rules

Apply these on every code write, not during dedicated security reviews:

  • No IDOR: Filter every resource query by owner_id or tenantId alongside any user-supplied ID. findById(params.id) without owner filter immediate P0.
  • No wildcard CORS: Restrict to explicit allowlisted origins — never Access-Control-Allow-Origin: * on authenticated routes.
  • No full entity return: Always project to DTO — never serialize raw ORM output to API response.
  • No plaintext secrets in mobile: Never store tokens in SharedPreferences/UserDefaults — use Keychain/Keystore.

Context-Specific Checklist

Activate when: writing security-sensitive features, reviewing PRs, or doing codebase audits.

Mark each item: ✅ not affected | ⚠️ needs review | 🔴 confirmed finding.

P0 finding caps Security score at 40/100.

Apply framework-specific security skills alongside this checklist. See references/owasp-web.md, references/owasp-api.md, and references/owasp-mobile.md for full detection signals.

OWASP Web Application Top 10 (2021)

IDRiskKey Detection Signal
A01Broken Access ControlfindById(params.id) without owner filter. Route without @authorize.
A02Cryptographic FailuresWeak hash (MD5/SHA1) for passwords. HTTP URL hardcoded. No TLS.
A03InjectionString concat in DB queries. Unsanitized input to templates. XSS.
A04Insecure DesignNo rate limiting on auth. Missing input validation at entry points.
A05Security MisconfigurationCORS *. Debug mode in prod. Missing security headers (CSP, HSTS).
A06Vulnerable ComponentsCVE in dependency audit. Unreviewed new direct dependency.
A07Auth FailuresJWT without expiry. No session invalidation on logout.
A08Data Integrity FailuresUnverified JWT/cookie. Deserialization of untrusted input.
A09Logging & MonitoringNo audit log on: deletion, password change, privilege escalation.
A10SSRFHTTP client with user-controlled URL and no allowlist.

OWASP API Security Top 10 (2023)

IDRiskKey Detection Signal
API1Broken Object Level Auth (BOLA)Resource by user-supplied ID without AND owner_id = currentUser.
API2Broken AuthenticationJWT missing exp. Token not revoked on logout. Bearer in URL.
API3Broken Property Level AuthFull ORM entity returned. No DTO projection. Mass assignment.
API4Unrestricted Resource ConsumptionNo server-enforced limit/pageSize. No throttle on heavy ops.
API5Broken Function Level AuthAdmin route reachable without role guard.
API6Unrestricted Business FlowNo verification on OTP/checkout/password-reset flows.
API8Security MisconfigurationStack trace in response. CORS * on authenticated routes.
API9Improper Inventory ManagementDeprecated/undocumented endpoints still reachable.
API10Unsafe API ConsumptionThird-party response used without schema validation.

OWASP Mobile Top 10 (2024)

IDRiskKey Detection Signal
M1Improper Credential UsageAPI keys in BuildConfig, Info.plist, hardcoded in source.
M2Inadequate Supply ChainUnverified SDKs, pods, or packages without lock files.
M3Insecure Auth/AuthZBiometric-only auth without server validation. Local role checks.
M4Insufficient I/O ValidationWebView loadUrl with user data. Intent data used unvalidated.
M5Insecure CommunicationNo cert pinning. cleartextTrafficPermitted=true. ATS exceptions.
M6Inadequate PrivacyLocation/contacts without justification. PII in analytics.
M7Insufficient Binary ProtectionNo obfuscation. android:debuggable=true. No root detection.
M8Security MisconfigurationExported components. Backup enabled. Debug endpoints.
M9Insecure Data StorageTokens in SharedPreferences/UserDefaults vs Keychain/Keystore.
M10Insufficient CryptographyHardcoded encryption keys. Deprecated algorithms (DES, RC4).

References

Canonical response anchors

  • Additional task-grounded exact anchors: rate limit, IDOR/BOLA, DTO projection

Remediation anchors

  • Remediation anchors: DTO projection, CORS, opaque session, JWT expiry, rate limiting

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

Frequently asked questions

What does the Common Owasp AI skill do?

OWASP Top 10 audit checklists for Web Applications (2021), APIs (2023), and Mobile (2024). Use when performing any security review, PR review, or codebase audit touching web, mobile, or API code.

Why use Common Owasp on TypingMind?

Because you install it once and use it with any model. Common Owasp is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Common Owasp in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/.agents/skills/common/common-owasp. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Common Owasp?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Common Owasp?

As many as you like. As long as a model supports skills, you can use Common Owasp with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Common Owasp AI skill free?

Yes. It is published on GitHub by HoangNguyen0403 under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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