OWASP ZAP is a free, open-source tool for finding security vulnerabilities in web applications by intercepting and analyzing HTTP traffic.

Yes, ZAP is completely free and open-source, maintained by the OWASP Foundation.

A dynamic application security testing (DAST) tool tests a running application from the outside, simulating attacks against it, as opposed to static analysis which examines source code.

Can OWASP ZAP be automated in CI/CD?

Yes, ZAP provides command-line and API interfaces that let it be integrated into automated build and deployment pipelines.

How does ZAP differ from Burp Suite?

ZAP is free and open-source, while Burp Suite offers both a free community edition and a more feature-rich paid professional edition; both serve similar intercepting-proxy testing purposes.

Cybersecurity

OWASP ZAP

By OWASP

IntermediateTool10.9K learners

OWASP ZAP (Zed Attack Proxy) is a free, open-source dynamic application security testing (DAST) tool maintained by the OWASP Foundation, used to find security vulnerabilities in web applications during development and testing.

#OWASPZAP #Cybersecurity#Tool#Intermediate#OWASP #OWASPTop10 #SQLInjection #CrossSiteScripting #InformationSecurity#Glossary#SkillVeris

Definition

OWASP ZAP (Zed Attack Proxy) is a free, open-source dynamic application security testing (DAST) tool maintained by the OWASP Foundation, used to find security vulnerabilities in web applications during development and testing.

Overview

OWASP ZAP operates as an intercepting proxy that sits between a browser (or automated test suite) and a target web application, allowing testers to inspect, modify, and replay HTTP/HTTPS requests. Its automated scanner crawls an application and probes it for common vulnerabilities such as SQL Injection and Cross-Site Scripting (XSS), which are consistently featured in the OWASP Top 10. Beyond automated scanning, ZAP provides manual testing tools including a request/response history, fuzzer, and scripting console for testers who want to probe specific application logic by hand — making it useful for both beginners learning web security and experienced testers performing deep manual assessments. Because it is free, open-source, and maintained by the same OWASP organization behind the OWASP Top 10, ZAP is widely adopted in CI/CD pipelines for automated security testing as well as in classroom settings, and it is a commonly used tool in courses like Web App Security OWASP and Veracode/Checkmarx-style application security workflows.

Key Features

Intercepting proxy for inspecting and modifying HTTP/HTTPS traffic
Automated active and passive scanning for common web vulnerabilities
Manual testing tools including fuzzer, spider, and scripting console
Free and open-source, maintained by the OWASP Foundation
CI/CD integration for automated security testing in pipelines
Extensible via a marketplace of community-built add-ons
Beginner-friendly interface alongside advanced manual testing features

Use Cases

Automated dynamic application security testing (DAST) in CI/CD pipelines

Manual penetration testing of web applications

Learning and teaching common web vulnerability classes hands-on

Pre-release security testing during the software development lifecycle

Validating fixes for previously identified web vulnerabilities

Auditing API endpoints for common security weaknesses

Frequently Asked Questions

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