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// OFFENSIVE SECURITY // SERVICE DOSSIER
Web Application Penetration Testing Services
Web application penetration testing capability, manual analysis, business logic flaw hunting, and deep API security designed for organisations that need real application resilience.
Manual Testing
PK & Worldwide
ISO 21001 Registered
Service Overview
We test and evaluate web applications and APIs tuned to enterprise realities, uncovering deep authentication bypasses, complex session management flaws, and custom vulnerabilities mapped to real world web attack vectors.
Whether you need a comprehensive assessment before a major product release, an ongoing API security review, or validation of complex user roles, the engagement is scoped precisely to your application architecture and threat profile, pragmatic, thorough, and never a generic automated tool dump.
Deep Source Analysis
Logic First Workflow
Validated Exploits
Senior Testing Pod
Request This Service
Tell us your scope and timeline. The JHO desk will respond with a tailored proposal and engagement plan.
Response Time: Under 24 Hours
What is web application penetration testing?
Web application penetration testing is the structured, predominantly manual assessment of web applications for exploitable security weaknesses. It covers the OWASP Top 10 including injection, broken access control, cryptographic failures, security misconfiguration, plus the much wider universe of issues those high level categories abstract over, business logic flaws, race conditions, parameter tampering, mass assignment, IDOR variants.
Modern web application testing must also cover the API surfaces backing single page applications and mobile clients. These often expose substantially more attack surface than the user facing web pages themselves, with weaker authorisation enforcement and far more business logic detail.
What web application testing delivers:
Identification of OWASP Top 10 vulnerabilities
Discovery of logic and authorisation flaws
Validation of authentication and session management
API security testing for SPA and mobile interfaces
PCI DSS, ISO 27001, SOC 2 compliance evidence
Practical remediation guidance developers can act on
Most production web applications need at least annual testing, with additional testing after significant feature releases or architectural changes.
Why Web Application Testing Matters
Automated vulnerability scanners miss the complex business logic flaws and nuanced authorization bypasses that cause major data breaches. A dedicated web application penetration test evaluates your application the way a determined real world attacker would, protecting your users and revenue.
For modern enterprises and software platforms, robust application security is a strict compliance and customer trust requirement. Just Hacked On delivers thorough manual testing that satisfies international regulatory frameworks and secures your digital footprint.
Industries We Serve
We deliver this service across these sectors:
Defence & Government
Financial Services
Healthcare
SaaS & Technology
Cloud Services
E-commerce & Retail
Education
Professional Services
// HOW WE DELIVER
Our Web Application Testing Methodology
A structured methodology combining OWASP Testing Guide, OWASP ASVS, and bespoke manual review for business logic.
Scoping & Authentication Setup
We define the in scope application URLs, user roles, and out of scope targets. Secure authentication setup is critical since the deepest weaknesses live behind the login.
Application Reconnaissance
Manual application mapping covering every endpoint, parameter, user role, and business workflow. We build a complete operational picture before exploitation begins.
Automated Scanning
Advanced web scanners run against the application to surface pattern matchable issues. These initial findings become the starting points for our deep manual investigation.
OWASP Top 10 Testing
Systematic testing against each OWASP category including injection, broken access control, cryptographic failures, security misconfiguration, and vulnerable components.
Business Logic Testing
Our highest value area. We conduct manual exploration of workflows, parameter tampering, race conditions, IDOR variants, mass assignment, and function level authorisation.
API & Backend Testing
Direct testing of API endpoints backing the application. This is often where the most exploitable issues live, typically carrying weaker authorisation than the UI implies.
Reporting & Walkthrough
Detailed findings delivered with exploitation evidence and code level remediation guidance. We also conduct a live walkthrough with your development team.
Remediation Retest
Critical and high severity findings are retested after your team applies remediation, providing documented validation for your compliance evidence.
ENGAGEMENT DELIVERABLES
What you receive
Every web application testing engagement with Just Hacked On includes:
Comprehensive scoping document and approved rules of engagement
Executive risk summary tailored for board level management
In depth technical findings featuring exact reproduction steps
CVSS scoring combined with real world exploitability prioritization
Source code level remediation guidance backed by practical examples
Dedicated developer walkthrough sessions for your engineering team
Strict compliance mapping against OWASP Top 10 and ASVS standards
Thorough remediation retests for all critical and high severity findings
YOUR OFFENSIVE SECURITY PARTNER
Why Just Hacked On for Web App Testing?
Real-world vulnerabilities—like complex authorization bypasses and business logic flaws cannot be detected by automated scanners. They require the mindset of an actual attacker. At Just Hacked On, we bridge the gap between a developer's intention and what an application can actually be forced to do. Your engagement is exclusively handled by senior offensive security practitioners, never junior analysts running basic tools.
Certified Senior Testers
Deep Manual Logic Testing
Code-Level Fix Recommendations
OWASP Top 10 & ASVS Aligned
Live Developer Debrief Sessions
Complimentary Retest Included
QUESTIONS & ANSWERS
Web App Testing, Answered
Clear answers about how we evaluate and secure your web platforms.
Our assessments cover the complete OWASP Top 10, including injection flaws, broken access controls, and cryptographic failures. We also dive deep into business logic testing, hunting for race conditions, IDORs, and workflow tampering. Beyond that, we evaluate authentication mechanisms, session management, API backend security, and client side vulnerabilities. The exact boundaries are finalised during our initial scoping call.
Web application penetration testing evaluates your live, running application from an external or authenticated perspective. Secure code review is a deep static analysis of your actual source code. Both methods uncover completely different classes of vulnerabilities and work best when paired together, a strategy heavily adopted by our clients for their most critical platforms.
Absolutely. SPAs and their underlying APIs form a massive part of our core testing scope. In modern environments, we spend far more time scrutinising APIs than traditional web pages. This is because SPAs shift heavy business logic into the browser, leaving the backend APIs exposed and frequently lacking the strict authorisation enforced by the frontend UI.
Pricing is entirely driven by the complexity of your application, the number of user roles, and the total API endpoints in scope. Rather than charging arbitrary software license fees, our costs reflect the actual days our senior testers spend analyzing your platform. Once we complete a brief scoping call, we provide a transparent, fixed fee quote within one working day.
We evaluate every distinct permission level defined within your scope. A standard mid tier application typically features three to five roles, such as anonymous, standard user, administrator, and API integration. Since each additional role requires dedicated testing paths to verify privilege separation, we map out this role matrix during our initial discussions to ensure accurate timelines.
We highly recommend conducting assessments in a staging or pre production environment that mirrors your live setup. If production testing is unavoidable, we implement strict operational controls to prevent data corruption. This includes using isolated test accounts, adhering to read only access for sensitive records, and strictly prohibiting destructive payloads without your explicit written consent.
RELATED OPERATIONS
Other Offensive Security Services
READY TO SEE WHAT HACKERS CAN FIND?
Tell us your scope and any deadline. You will get a scope recommendation and a fixed scope quote, usually within one business day.