Short definition: Incorrect OAuth setup that leads to token theft or unauthorized access.
1 min read
What it is
OAuth enables delegated access without passwords. Misconfigurations-like missing redirect URI validation or overly broad scopes-allow attackers to hijack tokens or impersonate users.
Why it matters
OAuth powers thousands of apps, login flows, and cloud integrations. A single misconfiguration can expose sensitive data.
How to reduce risk
- Validate redirect URIs
- Verify state parameters
- Limit token scope
- Secure token storage
- Rotate tokens
- Monitor OAuth grant activity