OWASP Top Ten

OWASP Top Ten
Name	OWASP Top Ten
Founded	2003
Genre	Web application security
Country	International

OWASP Top Ten

The OWASP Top Ten is a community-driven catalog that enumerates the most critical web application security risks, produced by the Open Web Application Security Project. It is widely referenced by practitioners, auditors, policymakers, and standards bodies to prioritize defensive measures across software projects, compliance programs, and procurement decisions. The list synthesizes input from security researchers, vendors, and incident data to produce a consensus set of high-risk findings and recommended mitigations.

Overview

The OWASP Top Ten functions as an awareness document and de facto baseline for application security programs used by organizations such as Microsoft, Google, Amazon, Facebook, IBM, Cisco, Oracle, Red Hat, SAP, Atlassian, Salesforce, Adobe, VMware, Intel, Apple, Netflix, Twitter, LinkedIn, PayPal, Stripe, Cloudflare, Deloitte, Accenture, PwC, KPMG, EY, US Department of Defense, National Institute of Standards and Technology, ENISA, World Bank, International Monetary Fund, United Nations, Interpol, ISC2, ISACA, SANS Institute, OWASP Foundation, BSA, Cybersecurity and Infrastructure Security Agency, Gartner, Forrester Research, MITRE, CVE and many academic groups and incident response teams.

History and Development

The effort started within the Open Web Application Security Project community and has evolved through contributions from entities including Kenna Security, Veracode, WhiteHat Security, PortSwigger, Rapid7, Qualys, Tenable, Snyk, Checkmarx, Imperva, F5, Akamai, Proofpoint, CrowdStrike, Mandiant, Trend Micro, McAfee, Sophos, Bitdefender, Kaspersky Lab, ESET, FireEye, Palantir, CrowdStrike, and academic partners at MIT, Stanford University, Carnegie Mellon University, University of Cambridge, University of Oxford, ETH Zurich, National University of Singapore, Tsinghua University, University of California, Berkeley, and Technische Universität München. Major revisions have paralleled shifts seen in incidents like the Equifax breach, Target data breach, Yahoo data breach, Marriott data breach, SolarWinds hack, Colonial Pipeline cyberattack, Stuxnet, NotPetya, WannaCry, Heartbleed, and regulatory responses such as the General Data Protection Regulation.

2021/Latest List and Categories

The 2021 edition reorganized categories to reflect modern threats and aggregate similar failure modes; stakeholders included corporate security teams from Amazon Web Services, Google Cloud Platform, Microsoft Azure, Heroku, DigitalOcean, Alibaba Cloud, Tencent Cloud, Oracle Cloud, and telemetry from vulnerability programs like Bugcrowd, HackerOne, Zerodium, Synack, Cobalt.io, and data sources such as NVD. The top items address injection, broken authentication, sensitive data exposure, XML external entities, broken access control, security misconfiguration, cross-site scripting, insecure deserialization, components with known vulnerabilities, insufficient logging and monitoring, and server-side request forgery — concepts that intersect with work by IEEE, IETF, W3C, ISO/IEC 27001, PCI DSS, HIPAA, SOC 2, FedRAMP, and the Cloud Security Alliance.

Methodology and Risk Assessment

OWASP’s methodology combines empirical vulnerability data, survey input from vendors and insurers, and risk-scoring heuristics similar to CVSS used by MITRE and FIRST. Contributors include security incident responders from teams at Kaspersky, ESET, Trend Micro, Mandiant, CrowdStrike, and data aggregators like CVE Details. The process evaluates exploitability, prevalence, detectability, and technical impact, aligning with threat modeling approaches from STRIDE and DREAD variants used in software assurance frameworks applied by NIST and industry consortia such as OWASP Foundation working groups.

Adoption, Impact, and Criticism

Adoption by vendors, auditors, and regulators has driven integrations into secure development lifecycles at firms like Microsoft, Google, Amazon, GitHub, and professional services from Deloitte, Accenture, and PwC. Critics from academic researchers at Cornell University, University of Oxford, UC Berkeley, and policy analysts at RAND Corporation and Brookings Institution have argued about sample bias, the granularity of categories, and the need for stronger empirical validation versus marketing-driven influence from security vendors. Debates have referenced standards-setting bodies such as ISO, IETF, IEEE, and national agencies like CISA.

Mitigation Strategies and Best Practices

Mitigations recommended draw on secure coding standards and defensive patterns promoted by CERT Coordination Center, NIST, ISO/IEC, and vendors including OWASP Foundation guides, and are incorporated into tools and pipelines from GitLab, GitHub Actions, Jenkins, CircleCI, Travis CI, Bamboo, Azure DevOps, Bitbucket, and container orchestration platforms like Kubernetes. Practices include input validation, authentication hardening, encryption and key management with guidance aligned to FIPS and NIST SP 800-57, access control enforcement, secure configuration management echoed in CIS Controls, dependency management, and centralized logging and incident response workflows used by Splunk, Elastic, Sumo Logic, Datadog, and PagerDuty.

Tools and Resources for Implementation

A wide ecosystem supports implementation: static and dynamic analysis tools from SonarQube, Fortify, Checkmarx, Veracode, Semgrep, Bandit, Brakeman, and FindBugs; interactive application security testing from Burp Suite, OWASP Zed Attack Proxy, Acunetix, Netsparker; dependency scanners like Dependabot, Snyk, WhiteSource, OSS Index, and supply-chain policy tools promoted after incidents like SolarWinds hack. Educational resources include trainings by SANS Institute, Offensive Security, Coursera, edX, Pluralsight, certification programs from ISC2 and ISACA, and community projects maintained by the OWASP Foundation and numerous local chapters.

Category:Computer security