Authentication Bypass in QueryWeaver via Email Signup

Executive Summary

QueryWeaver has an authentication bypass flaw where attackers can get valid session tokens for existing accounts by submitting a signup request with a known victim's email. The system creates and links a token to the account before verifying if the email exists, granting unauthorized access without credentials.

Useful 0 Not Useful 0

Detection Guidance

Detecting this vulnerability requires monitoring for unauthenticated signup requests that generate valid session tokens for existing accounts. Check server logs for repeated signup attempts with known email addresses. Look for MERGE operations in Cypher queries that create tokens without prior authentication. Inspect network traffic for POST requests to signup endpoints with victim email addresses.

Useful 0 Not Useful 0

Impact Analysis

Attackers could impersonate users, access sensitive data, or perform unauthorized actions on their behalf. This includes reading private information, modifying settings, or escalating privileges without detection.

Useful 0 Not Useful 0

Compliance Impact

This vulnerability likely violates GDPR's data protection requirements by enabling unauthorized access to personal data and HIPAA's safeguards for protected health information, potentially leading to legal penalties and loss of compliance certifications.

Useful 0 Not Useful 0

Mitigation Strategies

Immediately disable the signup route or modify the authentication flow to validate email ownership before issuing session tokens. Review server logs for suspicious signup attempts with known email addresses.

Useful 0 Not Useful 0