fix: resolve security vulnerability in user signup process #100
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WalkthroughThe signup logic in Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant SignupPage
participant SupabaseAuth
User->>SignupPage: Submit signup form
SignupPage->>SupabaseAuth: signUp(email, password, options)
alt Success (data.user exists)
SignupPage->>SignupPage: Log success
SignupPage->>AuthContext: Navigate on auth state change
else Error (already registered)
SignupPage->>SignupPage: Show "account already exists" error
else Other error
SignupPage->>SignupPage: Log unexpected error
SignupPage->>SignupPage: Show generic error
end
Assessment against linked issues
Assessment against linked issues: Out-of-scope changesNo out-of-scope changes found. Possibly related PRs
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Actionable comments posted: 1
🧹 Nitpick comments (2)
Frontend/src/pages/Signup.tsx (2)
54-56: Consider adding more comprehensive error message patterns.The error handling covers the main variants but could be more robust. Supabase might return other variations of "already registered" messages.
Consider using a more comprehensive pattern check:
- if (error.message.includes("already registered") || - error.message.includes("already exists") || - error.message.includes("already been registered")) { + if (error.message.toLowerCase().includes("already") || + error.message.toLowerCase().includes("exists") || + error.message.toLowerCase().includes("duplicate")) {This approach is more resilient to message variations while maintaining security.
61-61: Optimize loading state management to avoid redundant calls.The
setIsLoading(false)is called in multiple places, which could be simplified by relying on the finally block for cleanup.Consider this refactor to eliminate redundant calls:
if (error) { // Handle specific error cases if (error.message.includes("already registered") || error.message.includes("already exists") || error.message.includes("already been registered")) { setError("An account with this email already exists. Please sign in instead."); } else { setError(error.message); } - setIsLoading(false); return; } // Check if signup was successful if (data.user) { // User was created successfully console.log("User signed up successfully:", data.user); // AuthContext will handle navigation based on user onboarding status and role } - setIsLoading(false); } catch (err) { console.error("Signup error:", err); setError("Something went wrong. Please try again."); } finally { setIsLoading(false); }Also applies to: 72-72, 77-77
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📒 Files selected for processing (1)
Frontend/src/pages/Signup.tsx(1 hunks)
🧰 Additional context used
🧬 Code Graph Analysis (1)
Frontend/src/pages/Signup.tsx (1)
Frontend/src/utils/supabase.tsx (1)
supabase(11-11)
🔇 Additional comments (2)
Frontend/src/pages/Signup.tsx (2)
45-50: Security improvement approved - direct signup approach prevents email enumeration.The change from checking user existence via dummy sign-in to direct signup is a significant security improvement that aligns with OWASP best practices. This prevents email enumeration attacks while maintaining proper user experience.
74-74: Good practice: Error logging enhances debugging capabilities.Adding console.error for unexpected errors is a good debugging practice that will help identify issues without exposing sensitive information.
| if (data.user) { | ||
| // User was created successfully | ||
| console.log("User signed up successfully:", data.user); | ||
| // AuthContext will handle navigation based on user onboarding status and role | ||
| } |
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🛠️ Refactor suggestion
Remove or sanitize console logging to prevent information disclosure.
The console.log statement may expose sensitive user information including email, user ID, and other metadata that could be useful for attackers.
Apply this diff to remove sensitive information logging:
- console.log("User signed up successfully:", data.user);
+ console.log("User signed up successfully");Or if logging is needed for debugging, sanitize the output:
- console.log("User signed up successfully:", data.user);
+ console.log("User signed up successfully:", { id: data.user.id, email: data.user.email });📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| if (data.user) { | |
| // User was created successfully | |
| console.log("User signed up successfully:", data.user); | |
| // AuthContext will handle navigation based on user onboarding status and role | |
| } | |
| if (data.user) { | |
| // User was created successfully | |
| console.log("User signed up successfully"); | |
| // AuthContext will handle navigation based on user onboarding status and role | |
| } |
🤖 Prompt for AI Agents
In Frontend/src/pages/Signup.tsx around lines 66 to 70, the console.log
statement outputs sensitive user information which risks information disclosure.
Remove the console.log entirely or replace it with a sanitized log that excludes
sensitive fields like email and user ID, ensuring no private data is exposed in
the console.
|
@chandansgowda pr generated please review it |
Problem
Critical security vulnerability in user signup process allowing email enumeration and potential account lockouts.
Solution
Security Improvements
Files Changed
Frontend/src/pages/Signup.tsxCloses #99
Summary by CodeRabbit