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OWASP Code Review & Application Security Testing in the US

We provide OWASP Secure Code Review Services for Application Security in the US, combining manual source code analysis with SAST and SCA to identify vulnerabilities, access control issues, business logic flaws, insecure coding practices, API risks, and supply chain threats that automated tools may miss.

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OWASP ASVS 5.0 OWASP Top 10:2025 API Security Top 10:2023 Manual Code Review SAST/SCA Secure SDLC

Why Secure Code Review Matters for US Application Security

The security risks in modern applications continue to grow as development teams rely on APIs, cloud services, third party components, and faster release cycles.

The real challenges begin with the need to:

  • Identify vulnerabilities in application source code
  • Secure authentication and authorization controls
  • Protect sensitive data and critical application flows
  • Detect business logic and access control issues
  • Manage risks across APIs, dependencies, and software supply chains

Poor code security can lead to serious consequences, such as:

  • Exploitable application vulnerabilities
  • Unauthorized access to sensitive data
  • Authentication and authorization failures
  • Business logic abuse
  • API security weaknesses
  • Compliance and security issues

These risks become particularly important for US organizations that handle sensitive customer, financial, healthcare, or business data.

Our OWASP Secure Code Review Services combine manual source code analysis with SAST and SCA tools where appropriate. We review application logic, data flows, authentication, authorization, APIs, dependencies, and security controls to identify issues that automated tools may miss.

We help organizations detect security weaknesses earlier, strengthen application security, improve secure development practices, and reduce risks before vulnerabilities reach production.

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OWASP Standards and Security Frameworks for Code Review

Secure code reviews need a defined security baseline to identify more than common coding errors. We evaluate application security controls against relevant OWASP standards and frameworks, identify vulnerabilities at the code level, and provide findings that development teams can act on.

OWASP Top 10:2025

The OWASP Top 10:2025 includes a Risk Focused Perspective on the Major Web Application Security Risks such as Broken Access Control, Security Misconfiguration, Software Supply Chain Failures, Cryptographic Failures, Injection, and Authentication Failures. It is used to identify and prioritize application security risks in code review.

OWASP ASVS 5.0

OWASP ASVS 5.0 offers structured security verification requirements for authentication, session management, access control, validation, cryptography, business logic and API security. When a review calls for more detailed and formal application security verification, we use the applicable ASVS requirements.

OWASP API Security Top 10:2023

OWASP API Security Top 10:2023 looks at the specific security threats to APIs, such as Broken Object-Level Authorization, Broken Authentication, Unrestricted Resource Consumption and Unsafe Consumption of APIs. It's used for evaluating API endpoints, authorization controls, data exposure, and API-specific workflows.

CWE Top 25:2025

CWE Top 25:2025 features common and high-risk software vulnerabilities, including Cross-Site Scripting, SQL Injection, and Missing Authorization. CWE classifications are used to describe the underlying weakness of confirmed findings and give a basis to developers that they can use to remediate the findings.

Framework
Primary Focus
Role in Code Review
OWASP Top 10:2025
Common web application security risks
Risk focused review coverage
OWASP ASVS 5.0
Application security verification requirements
Structured security verification
OWASP API Security Top 10:2023
API specific security risks
API and authorization review
CWE Top 25:2025
Common and dangerous software weaknesses
Finding classification and remediation

The applicable framework depends on the application’s architecture, technology stack, API exposure, and review objectives. Using these standards as a baseline helps make the review systematic while allowing our reviewers to examine application-specific logic and risks that generic checklists may not capture.

Secure Code Review Services for Web, API & Application Security

Manual OWASP Code Review

Manual review of source code for vulnerabilities that automated tools may have missed such as broken access control, broken authentication, injection, insecure cryptography, business logic, racing, and insecure error handling.

SAST & SCA Assisted Code Review

We use SAST and SCA to identify potential code vulnerabilities and vulnerable dependencies, then manually validate relevant findings to reduce false positives and assess their application context.

Authentication & Authorization Review

We explore authentication processes, session management, access controls, privilege domains, and authorization checks to find inconsistencies in security controls, privilege escalation routes and authentication bypasses.

Business Logic & Data Flow Review

We trace data flows and application workflows across trust boundaries to identify logic flaws, unsafe data handling, unintended access paths, and security issues that depend on application-specific behaviour.

API & Application Security Review

We review APIs and application components for authorization weaknesses, input handling issues, sensitive data exposure, insecure error handling, and other security risks affecting web and API-based applications.

Language & Framework-Specific Review

We examine PHP, JavaScript/TypeScript, Python, Java, C#, and Go in popular web, API, and mobile back-end architectures using language- and framework-specific security considerations.

We provide secure code review services, such as baseline application reviews, security-critical component reviews, and development lifecycle integrated reviews. We give findings with exact locations of codes, severity and priority, clear explanations, and remediation advice on how to fix it practically and, if necessary, developer debriefs and remediation support.

Technologies We Use for Secure Code Review

Our OWASP Secure Code Review Services combine manual analysis with security tools to identify application, API, dependency, and code vulnerabilities.

  • SAST Scans source code for vulnerabilities and insecure coding patterns.

  • SCA Identifies vulnerable dependencies, outdated libraries, and supply chain risks.

  • Programming Languages Supports Java, C#, JavaScript, TypeScript, Python, PHP, Go, C, and C++.

  • API Security Reviews REST and GraphQL APIs for authentication, authorization, and data exposure risks.

  • CI/CD and DevSecOps Integrates security checks into development and deployment pipelines.

  • Git and Code Repositories Supports Git, GitHub, GitLab, and Bitbucket based code review workflows.

Security Controls We Assess During Code Review

Security code review needs to examine more than individual vulnerability patterns. We assess how security controls are implemented across the application, including how data enters, moves through, and is protected by the code.

Our review includes:

  • Authentication & session management for login flows, session handling, MFA, and credential controls

  • Authorization & access control for permission checks, privilege boundaries, and unauthorized access paths

  • Input validation & output handling for injection risks, unsafe data processing, and encoding issues

  • Cryptography & secrets for weak algorithms, insecure key handling, hard-coded credentials, and random-number use

  • Data protection for sensitive information exposed through logs, errors, caches, APIs, or overly broad access

  • Error handling & logging for information leakage, insecure exception handling, and inadequate security events

  • Dependencies & configuration for vulnerable components, insecure defaults, and configuration weaknesses

We assess these controls in the context of the application's architecture and business logic, rather than treating each security control as an isolated checklist item. This helps identify weaknesses that depend on how different components and workflows interact.

Compliance-Aligned Secure Code Review

Secure code review can support compliance programmes by providing evidence that application security controls and coding practices have been assessed against relevant requirements. Xcodefix Global maps review findings to applicable security standards where required by the project.

Our approach can support:

  • OWASP ASVS 5.0 for structured application security verification

  • PCI DSS requirements related to secure software development and code review

  • HIPAA security considerations for applications handling protected health information

  • SOC 2 security controls relevant to software development and change management

  • ISO 27001 application security and secure development practices

  • CWE classifications to document and communicate underlying software weaknesses

We document findings with their security impact, applicable framework references, severity, and remediation guidance. This gives development and security teams a clearer record of identified risks while supporting broader security and compliance activities.

How a Secure Code Review Engagement Runs

Step 1

Scope & Codebase Assessment

We review the application architecture, technology stack, codebase scope, security-critical components, APIs, and review objectives. We define the review depth and applicable OWASP standards before the assessment begins.

Step 2

Automated Analysis & Review Preparation

Where appropriate, we use SAST and SCA to identify potential code vulnerabilities and dependency risks. We triage the results and use them to focus manual review rather than treating automated findings as final.

Step 3

Manual Source Code Review

Our reviewers examine source code for authentication and authorization issues, injection, cryptographic weaknesses, business logic flaws, insecure data flows, race conditions, and other application-specific risks.

Step 4

Finding Validation & Risk Assessment

We validate identified issues in their application context, filter false positives, assess exploitability and impact, and map relevant findings to OWASP Top 10:2025, ASVS 5.0, API Security Top 10:2023, or CWE where applicable.

Step 5

Reporting & Developer Debrief

We provide findings with precise code locations, severity and priority, security impact, and practical remediation guidance. We then debrief the development team to explain the issues and recommended fixes.

Step 6

Remediation Support & Verification

We remain available during remediation to clarify findings and help developers address the underlying weaknesses. Where required, we can perform a follow-up review to verify that reported issues have been resolved.

Step 7

Timelines and Project Realities

The time frame of code reviews varies based on the size of the code base, the complexity of the application, the number of components, and the level of review needed. A security-critical component might take days to review, and a larger application review takes longer. We define the scope of the review according to the code base, architecture, technology stack and assurance requirements before committing to a timeline.

Secure Code Review Use Cases Across US Industries

Web Applications:

Authentication, authorization, input handling, business logic, data protection and application security controls.

APIs

Access control, authentication, data exposure, input validation, API workflows and security-related business logic.

Security-Critical Components

Payment flows, authentication systems, authorization modules, cryptographic functions and other high-risk application areas.

Legacy Applications:

Existing codebases where security weaknesses need to be identified before modernization, maintenance, or further development.

Software Development Projects

New applications and major changes where security review can find problems before they enter production.

CI/CD & Secure SDLC

Continuous security scan of security-sensitive changes, dependency scanning, and other development security measures.

What a Secure Code Review Helps Identify

A secure code review can help reveal security vulnerabilities that would not be uncovered by external tests. By reviewing source code, you can identify errors in the authorization logic, improper data flows, hard-coded secrets, cryptographic misuse, injection paths, business logic errors, and security breaches caused by changes to the application.

Our reviewers evaluate these issues by considering the architecture of the application, its likely behavior, and validate findings before reporting, and offer practical remediation advice. This enables development teams to mitigate security vulnerabilities before they turn into live issues.

Why Choose Xcodefix Global for OWASP Secure Code Review Services

Software Engineering Expertise

Our reviewers work in software engineering, giving them practical understanding of how production applications, APIs, and back-end systems are built.

Manual-First Security Assessment

We go beyond automated findings to assess application logic, authorization, data flows, and security controls that require code-level understanding.

Application-Specific Findings

We provide precise code locations, security impact, severity, priority, and practical remediation guidance for each validated finding.

Multi-Stack Code Review

We review PHP, JavaScript/TypeScript, Python, Java, C#, and Go across common web, API, and mobile back-end architectures.

Security-Aligned Development Support

We support secure development through CI/CD security controls, SAST, dependency scanning, review gates, and developer security guidance.

Scope Matched to Risk

We tailor the review to the application's architecture, codebase, security-critical components, and required assurance level.

OWASP Secure Code Review Areas We Serve Across the US

We provide OWASP Secure Code Review services to businesses across major US cities and states. Our reviews help teams identify code level security risks and improve application security.

  • San Francisco Bay Area
  • Seattle
  • New York
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Ready to Review Your Code Before It Reaches Production?

Identify vulnerabilities that automated scanning may miss through manual source code review aligned with OWASP standards. We assess application logic, access controls, data flows, cryptography, APIs, and other security-critical code areas.

Talk to our secure code review experts to scope a review based on your application, technology stack, and security requirements.

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Common Questions About OWASP Secure Code Review Services

An OWASP secure code review is a review of the application's source code that seeks out security vulnerabilities, insecure coding practices and deficiencies in security controls. We audit authentication, authorization, input validation, cryptography, API security, business logic, data protection, and dependencies, against the applicable OWASP standards at Xcodefix Global.

A secure code review looks at the source code itself, and penetration testing is an attack on the running application from the outside. The weaknesses that can be revealed with Code Review include incorrect authorization logic, insecure data flow, cryptographic usage, and hidden business logic. We take both tests as complementary to an application security programme.

Our secure code review services analyze authentication and session management, access control, input validation, input injection, cryptography, secrets, data protection, error handling, logging, application specific business logic, dependencies, and configuration. The review scope is tailored to the application architecture, technology stack and security needs.

SAST scans for potential vulnerabilities, while secure code review is a manual process that involves analyzing the logic and security controls within the application. With broad coverage, we use SAST when appropriate, and follow up on any relevant findings and explore any issues that automated tools might not cover, such as authorization flaws, business logic weaknesses and context-dependent data flows.

This timeline is subject to change depending on the size of the code base, complexity of the application, technology stack, security applications, and the scope of review. A more in-depth study of an authentication or payment element can be days; a full application review will take longer. We define scope and assurance requirements before we invest in a timeline.

The cost of a secure code audit depends on the amount of source code, application architecture, number of APIs or components, technology stack, and required review depth. The scope of a focused security-critical component differs from a full app review. We assess these factors before providing a review scope and quotation.

OWASP ASVS 5.0 offers structured, application security verification requirements including sections on authentication, session management, access control, validation, cryptography and API security. When a project requires structured security verification or a documented security assurance standard, we review with applicability the requirements of the ASVS.

Yes. Often, business logic vulnerabilities rely on the intended usage of an application, not on a specific vulnerable coding pattern. Our manual reviewers analyze application flows, authorization logic, trust limits and data flows to expose such problems as privilege escalation, authorization bypasses, unintended functionality, and race conditions.

Yes. We test APIs for the following risks in the OWASP API Security Top 10:2023: Broken Object Level Authorization, Authentication, Excessive Data Exposure, Resource-related. We also discuss endpoint authorization, handling of input, data access and Application-specific API workflows.

Yes. A compliance-aligned secure code review can support application security and secure development requirements within broader compliance programmes. Xcodefix Global can map relevant findings to applicable requirements from PCI DSS, HIPAA, SOC 2, ISO 27001, OWASP ASVS, and CWE, depending on the project's scope and compliance objectives.
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