csrf-protection
CSRF Protection - Preventing Cross-Site Request Forgery
What CSRF Attacks Are
The Attack Scenario
Imagine you're logged into your banking app. In another tab, you visit a malicious website. That website contains hidden code that submits a form to your bank: "Transfer $10,000 to attacker's account." Because you're logged in, your browser automatically sends your session cookie, and the bank processes the transfer.
This is Cross-Site Request Forgery—tricking your browser into making requests you didn't intend.
Real-World CSRF Attacks
Router DNS Hijacking (2008): A CSRF vulnerability in several home routers allowed attackers to change router DNS settings by tricking users into visiting a malicious website. Victims lost no money but were redirected to phishing sites for months. Millions of routers were affected.
YouTube Actions (2012): YouTube had a CSRF vulnerability that allowed attackers to perform actions as other users (like, subscribe, etc.) by tricking them into visiting a crafted URL.
Why CSRF Is Still Common
More from harperaa/secure-claude-skills
dependency-supply-chain-security
Manage dependencies and supply chain security to prevent vulnerable or malicious packages. Use this skill when you need to audit dependencies, update packages, check for vulnerabilities, understand supply chain attacks, or maintain dependency security. Triggers include "dependencies", "npm audit", "supply chain", "package security", "vulnerability", "npm update", "security audit", "outdated packages".
161security-architecture-overview
Understand the defense-in-depth security architecture of Secure Vibe Coding OS. Use this skill when you need to understand the overall security approach, the 5-layer security stack, OWASP scoring, or when to use other security skills. Triggers include "security architecture", "defense in depth", "security layers", "how does security work", "OWASP score", "security overview", "security principles".
145input-validation-xss-prevention
Validate and sanitize user input to prevent XSS, injection attacks, and ensure data quality. Use this skill when you need to validate forms, sanitize user input, prevent cross-site scripting, use Zod schemas, or handle any user-generated content. Triggers include "input validation", "validate input", "XSS", "cross-site scripting", "sanitize", "Zod", "injection prevention", "validateRequest", "safeTextSchema", "user input security".
144rate-limiting
Implement rate limiting to prevent brute force attacks, spam, and resource abuse. Use this skill when you need to protect endpoints from automated attacks, prevent API abuse, limit request frequency, or control infrastructure costs. Triggers include "rate limiting", "rate limit", "brute force", "prevent spam", "API abuse", "resource exhaustion", "DoS", "withRateLimit", "too many requests", "429 error".
139secure-error-handling
Implement secure error handling to prevent information leakage and provide appropriate error responses. Use this skill when you need to handle errors in API routes, prevent stack trace exposure, implement environment-aware error messages, or use the error handler utilities. Triggers include "error handling", "handle errors", "error messages", "information leakage", "stack trace", "handleApiError", "production errors", "error responses".
139authentication-authorization-clerk
Implement secure authentication and authorization using Clerk. Use this skill when you need to authenticate users, protect routes, check permissions, implement subscription-based access control, or integrate Clerk with your application. Triggers include "authentication", "auth", "authorization", "Clerk", "protect route", "check user", "sign in", "session", "permissions", "subscription access".
139