OWASP-Aligned Penetration Testing — Top 10, ASVS, MASVS & API Security
OWASP is not a single standard but a family of open, community-maintained references that between them define how application security testing is actually done in practice — the Top 10 risk categories for awareness, the Application Security Verification Standard (ASVS) for structured web-app testing depth, the Mobile Application Security Verification Standard (MASVS) for mobile, and the API Security Top 10 for API-specific risk. Together they form the methodology backbone behind most credible web, mobile, and API penetration testing.
Mutex Systems runs OWASP ASVS Level 2/3 and MASVS-aligned testing across web, mobile, and API scopes, with findings mapped back to the OWASP Top 10 and API Security Top 10 categories so results are immediately actionable against a recognised reference.
- Category
- Testing Methodology
- Jurisdiction
- International
- Issuing Body
- Open Worldwide Application Security Project (OWASP)
- Current Version
- OWASP Top 10, ASVS, MASVS, and API Security Top 10 — each maintained and versioned independently by OWASP
- Who It's For
- Any organisation running a penetration test or security review of a web application, mobile app, or API — OWASP references are the de facto shared vocabulary between security teams, developers, and auditors.
Core Domains
A Practical Engagement Path
- 01
Scope & Standard Selection
Determine which OWASP references apply — web (ASVS), mobile (MASVS), API (API Security Top 10) — and the appropriate ASVS verification level for the application's risk profile.
- 02
Structured Testing
Manual, methodology-driven testing against the selected standard's requirement list — not just an automated scan with a PDF wrapped around it.
- 03
Risk Mapping
Every finding is mapped back to its OWASP Top 10 (or API Security Top 10) category, giving developers and auditors a shared reference point.
- 04
Reporting & Retest
CVSS-scored findings with proof-of-concept evidence and remediation guidance, followed by a retest to confirm fixes actually close the gap.
Manual Testing, Not Just an Automated Scan
OWASP ASVS and MASVS-aligned methodology drives manual, methodology-driven penetration testing that finds what automated scanners miss, with reports that stand up to regulator and auditor scrutiny.
- Web application, mobile, API, and cloud pentests run against the appropriate OWASP standard for each scope
- Findings scored with CVSS and mapped to the relevant OWASP Top 10 or API Security Top 10 category
- Regulator-ready reports with remediation guidance, not just a raw vulnerability list
Related Pages
Findings Land as Tracked Controls, Not a PDF That Gets Filed Away
grComply ingests OWASP-aligned penetration test findings as structured records linked to the specific control they violate, so a CVSS-scored finding from an ASVS Level 2 assessment turns into a tracked remediation item with an owner and a deadline, not a paragraph in a report nobody revisits.
- Findings mapped to the OWASP Top 10 or API Security Top 10 category attach directly to the corresponding ISO 27001, SOC 2, or NIST CSF control they provide evidence for
- The raise / respond / review / close workflow with countersign gives remediation the same audit-ready structure as a formal regulator observation
- Retest evidence uploads directly against the original finding, closing the loop with a timestamped record instead of a second disconnected report
grComply is Mutex Systems' own multi-tenant GRC automation platform — the framework library, hybrid scanning, risk and audit workflow, and AI-assisted compliance behind every point above are live in production today.
See How grComply WorksCommon Questions About OWASP Framework
What is the difference between the OWASP Top 10 and ASVS?
The OWASP Top 10 is an awareness document — the ten most critical web application security risk categories, refreshed periodically, used to prioritise where attention matters most. The Application Security Verification Standard (ASVS) is a much more granular, testable requirements list organised into three verification levels, used as the actual basis for structured penetration testing and secure development. The Top 10 tells you what matters; ASVS tells you exactly what to test for.
What ASVS level should our application be tested against?
Level 1 covers low-assurance applications and is largely achievable through automated tooling. Level 2 is the recommended baseline for most applications handling sensitive data — the level most professional penetration tests are conducted against. Level 3 is reserved for high-assurance applications such as those in critical financial or healthcare contexts, requiring the deepest verification depth.
Does OWASP have a mobile-specific standard?
Yes — the Mobile Application Security Verification Standard (MASVS), OWASP's mobile equivalent to ASVS, covering iOS and Android-specific risk categories such as platform interaction, resilience against reverse engineering, and secure data storage on-device.
How does the OWASP API Security Top 10 differ from the main Top 10?
APIs have a distinct risk profile from traditional web applications — issues like broken object-level authorisation, excessive data exposure, and lack of resource/rate limiting are far more central to API security than to a conventional web app. The API Security Top 10 exists as a separate, API-specific risk list rather than trying to force API findings into the general Top 10 categories.
Does Mutex Systems test against OWASP standards?
Yes. Mutex Systems runs OWASP ASVS Level 2/3 and MASVS-aligned penetration testing across web, mobile, and API scopes, with findings mapped to the relevant OWASP Top 10 or API Security Top 10 category.
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