What A01:2025 Broken Access Control requires
OWASP Top 10:2025 A01:2025 Broken Access Control. Access control enforces policy such that users cannot act outside of their intended permissions. Failures typically lead to unauthorized information disclosure, modification or destruction of all data, or performing a business function outside the user's limits. This category sits within the OWASP Top 10:2025 (the 2025 edition, finalized January 2026), the canonical industry list of the ten most critical web application security risks. Organizations building web applications should treat each of the ten categories as both a design constraint and a continuous-monitoring obligation, with policies, automated testing, and incident response procedures defined per category. Mapped weaknesses: CWE-22, CWE-23, CWE-36, CWE-59, CWE-61, CWE-65, CWE-200, CWE-201, CWE-219, CWE-276, CWE-281, CWE-282, and others.
Pillar: Cybersecurity · Authority: OWASP Foundation (Open Worldwide Application Security Project) · Version: 1.0.0 · Last updated:
Primary source: https://owasp.org/Top10/2025/A01_2025-Broken_Access_Control/
SHA-256 integrity: 4d66e2dd0582cb52baeed27b271e67b86508e157be472cd601adff67ee0c0e2d
Primary Citations — 13 traced to source
- OWASP Top 10:2025, A01:2025 Broken Access Control, How to Prevent: 'Except for public resources, deny by default.'
- OWASP Top 10:2025, A01:2025 Broken Access Control, How to Prevent: 'Implement access control mechanisms once and reuse them throughout the application, including minimizing Cross-Origin Resource Sharing (CORS) usage.'
+ 11 more citations (full bibliography, deterministic workflow, actionable schema and crosswalks) included in the vault unlock — $0.01 via Skyfire / L402 / Direct Base USDC.
Access
- Discovery (free): /api/v1/nodes/owasp-top-10-2025-a01-broken-access-control.json — 6-field metadata
- Vault (full node): /api/v1/vault/nodes/owasp-top-10-2025-a01-broken-access-control.json — full 13-key payload, $0.01 USDC (L402/Skyfire/Direct Base)
- Canonical URL: https://bidda.com/intelligence/owasp-top-10-2025-a01-broken-access-control
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