OWASP Top 10

The OWASP Foundation’s list of the ten most critical web application security risks, updated every few years.

The current edition is OWASP Top 10:2025. It is an awareness document built from data and community input, with categories such as broken access control, injection and security misconfiguration. It is a good map of where to look, not a checklist that proves an app secure; for testable requirements OWASP publishes ASVS.

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Related terms

XSS (cross-site scripting): Attacker-controlled script running in your page in another user’s browser, with that user’s session.
SQL injection: Input that changes the meaning of a database query because it was pasted into the SQL text instead of passed as a parameter.
CASA (Cloud Application Security Assessment): The security assessment based on OWASP ASVS that Google requires for apps using restricted scopes, such as Gmail data.

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