The Open Web Application Security Project (OWASP) is a non-profit foundation dedicated to improving software security.[1]

Without a doubt, OWASP is one of the best resources for information on web application security.

OWASP Top Ten

Every few years, OWASP publishes a list of the 10 web application vulnerabilities that pose the most critical security risks. The latest release was in 2021 at the time of writing.

The 2021 OWASP list contains these critical vulnerabilities:

1. Broken Access Control
2. Cryptographic Failures
3. Injection
4. Insecure Design
5. Security Misconfiguration
6. Vulnerable and Outdated Components
7. Identification and Authentication Failures
8. Software and Data Integrity Failures
9. Security Logging and Monitoring Failures
10. Server-Side Request Forgery (SSRF)

You can read the OWASP publication containing the most critical security risks here.

References

[1] https://owasp.org/

quiz

What is the name of the tool that OWASP has prepared to help scan web applications for vulnerabilities?