VAPT Testing – Web Application & API

@AZTURK1

Hi there, You need grey-box VAPT for web app + REST & WebSocket APIs (~20 endpoints, multiple roles) - I handle this regularly with OWASP Top 10 / API Top 10 methodology and can provide full PoC evidence. What I'll do: ✅ Full grey-box VAPT of web app + ~20 REST/WebSocket endpoints testing auth, IDOR/BOLA, injection and business logic flaws ✅ Detailed report with severity ratings, reproduction evidence, remediation steps, executive summary + attestation certificate and free retest included ✅ Non-destructive testing with throttling and scope isolation to ensure zero impact on production ✅ Web/API VAPT - OWASP Top 10 & API Top 10 ✅ Burp Suite Pro, OWASP ZAP, Postman, SQLMap ✅ Grey-box & multi-role access control testing ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ 300+ projects delivered, 280+ five-star reviews Available 24/7, quick responses and unlimited revisions until you're satisfied. Do you have a staging URL with test accounts for each role and API docs (OpenAPI/Postman collection) I can use for testing? I can deliver in 3 days for 47813 INR and can start right now.

@sahilcomputers39

Hi, I can help you conduct a professional Grey-box VAPT of your web application, REST APIs, and WebSocket APIs, including testing across multiple user roles and approximately 20 endpoints. I have 16+ years of experience in cybersecurity, penetration testing, web/API security, AWS security, and vulnerability assessment, with strong knowledge of OWASP Top 10, OWASP API Security, authentication/authorization, IDOR, injection, session security, business logic, WebSocket security, and access-control testing. I will combine manual testing with industry-standard automated tools and provide a detailed report covering executive summary, vulnerability severity/CVSS ratings, evidence, reproduction details, business impact, and remediation recommendations, along with a retest after remediation. I can also share relevant VAPT experience and a redacted sample report during our Freelancer call while maintaining client confidentiality. We can discuss the budget later. Best regards, SaD

@ssquare489

Your scope is clearly defined around grey-box VAPT for the web application, REST APIs, WebSocket APIs, multiple roles, and roughly 20 endpoints, with professional reporting and remediation guidance expected afterward. I want to be transparent before applying: my background is primarily full-stack architecture, secure application development, API security, authentication/authorization, and production hardening. I do not have an industry cybersecurity certification that I can honestly present as meeting your stated eligibility requirement. I’m comfortable reviewing OWASP-related issues such as broken access control, authentication flaws, injection risks, insecure API behavior, rate limiting, session handling, and role-based authorization, but I would not position myself as a certified penetration tester or issue a formal VAPT attestation. Since your post explicitly states that only certified professionals with proven VAPT experience will be considered, I would rather flag that mismatch than submit a misleading proposal.

@offensiumvault

We at Offensium Vault Private Limited (ISO 27001:2022 & ISO 9001:2015) specialize in professional Web Application, REST API, and WebSocket API VAPT, including grey-box assessments with multiple user roles. Our Approach OWASP Top 10 & OWASP API Top 10 aligned testing Authentication, authorization, IDOR/BOLA, session and business-logic testing REST & WebSocket endpoint security assessment Injection, XSS, SSRF, CSRF, rate limiting, sensitive data exposure and misconfiguration testing Manual + automated testing with Burp Suite, OWASP ZAP, Nmap, Nuclei, SQLMap, and custom scripts All vulnerabilities manually validated before reporting Deliverables Detailed VAPT report with CVSS/risk ratings PoC evidence and reproducible steps Screenshots/request-response evidence Remediation recommendations Executive summary VAPT certificate/attestation, where applicable Retesting and final verification after remediation We can share our company profile, relevant certifications, and redacted sample VAPT reports upon request. Estimated timeline: 5–7 business days, depending on application complexity and testing access. Please share the application details and approximately 20 API endpoints, and we can provide a fixed-price quotation based on the confirmed scope.

@ukokab

I specialise in functional and API testing of web applications and their REST/WebSocket endpoints, using manual approaches, Playwright, and Postman. I have extensive experience testing multi‑role systems with complex workflows, and I excel at uncovering logic errors, broken authorisation, and edge‑case failures that break business rules. While I do not hold VAPT certifications, my rigorous API and workflow testing exposes the same high‑impact vulnerabilities that get exploited. For your WebSocket API, I will test both handshake‑level authentication and message‑level authorisation. I will also verify that role‑based permissions are enforced consistently across all 20 endpoints, including edge cases like privilege escalation and expired tokens. I will deliver a structured report with clear reproduction steps, expected vs actual behaviour, severity ratings, and actionable recommendations – exactly what your development team needs to fix issues quickly. Best, Usman K https://www.freelancer.com/u/ukokab

@ModernTechno442

With a project of this nature, it's crucial to choose a professional with a specialized skill set in software testing and cybersecurity. My firm, with over seven years of experience, has successfully executed numerous security testing projects similar to yours. We are acutely aware of the intricacies and risks found in web applications and APIs, and are proficient in grey-box testing, a key requirement you specified. Our understanding of REST and WebSocket APIs coupled with a comprehensive grasp of OWASP, ensures that no vulnerabilities slip through the cracks. Our deliverables are of exceptional quality and attention to detail. As qualified cybersecurity professionals, we analyze complexities thoroughly and provide descriptive reports complete with vulnerability severity/risk ratings, evidence-reproduction details and sound remediation recommendations if needed. Lastly, our end-to-end approach enables us to offer not only VAPT testing but also potential retesting after remediation – ensuring complete protection for your application. Trust my team’s professional expertise: we have the agility to perform quick thorough tests while delivering timely results without compromising on quality at an upfront cost that respects your budget. I look forward to collaborating on this critical project with you

@TechWagger2026

With over a decade of experience as a respected cybersecurity professional, I am confident in my abilities to meet and exceed your VAPT (Vulnerability Assessment and Penetration Testing) requirements. Having worked on countless projects similar to yours, I have honed my skills in assessing and securing web applications and APIs using advanced tools and methodologies. My vast knowledge of OWASP and modern web/API security ensures that no vulnerability is overlooked. Furthermore, my proficiency in API Testing, Software Testing, Testing / QA, and Web Security makes me perfectly suited for your project needs. I have conducted numerous VAPTs for web applications and APIs, consistently providing comprehensive reports with clear vulnerability ratings, detailed evidence and reproduction steps, thorough remediation recommendations, and executive summaries. Rest assured, my deliverables will be both detailed and accessible. Additionally, my dedication to client satisfaction means that I'm not satisfied with just finding the vulnerabilities - I strive to work with you to remediate them as well. I'm comfortable working within fixed-price quotes and can also commit to retesting your application after the necessary remediations have been made. I look forward to the opportunity of working with you to ensure the absolute security of your web application and

@gta24596

With a diverse background in Full Stack Development and an intense interest in cybersecurity, I believe I have the skills necessary to excel in this project. My extensive experience with information security testing and the ability to apply relevant industry-recognized cybersecurity certifications ensure that your web application and APIs will undergo comprehensive VAPT. I continually stay updated on the latest trends in security, so issues such as OWASP and modern web/API security are already in my wheelhouse. I understand that VAPT never just ends at conducting tests but also entails providing detailed reports, highlighting vulnerabilities, recommending remediation measures, and retesting after implementing solutions. My proficiency in crafting comprehensive reports with clear vulnerability severity/risk ratings, evidence, repro details, executive summary, and remediation recommendations complements your needs perfectly. Moreover, my commitment doesn’t conclude with delivering reports as I strive to provide a complete service with a focus on ensuring proper implementation of suggested fixes by offering assistance throughout the process. I have a strong belief in building long-term value for clients by fostering lasting partnerships. So, choose me to get a reliable+professional solution for your VAPT needs!

@EricLeroyDev

Hello, A VAPT covering web, REST and WebSocket together, grey-box with several roles across ~20 endpoints, is a genuinely broad scope, and the WebSocket layer in particular is where API testing often gets thin. A few points would help me frame it precisely for you: Is there a dedicated staging environment mirroring production for the test, or would this run against live? Knowing whether test accounts already exist for each user role also matters for grey-box coverage. Does the WebSocket channel carry sensitive or real-time data that needs its own attention? Beyond the report itself, is a specific standard expected (OWASP, CVSS ratings, or alignment with something like ISO 27001 or PCI for your stakeholders)? And is a remediation retest part of what you have in mind? Happy to discuss whenever suits you. Best regards, Eric

@StaceyG23

I DON'T COMPETE ON PRICE. I COMPETE ON RESULTS. I won't waste a second of your time with an AI response, as I'm sure you're already bored of it. So lets talk with facts, actions and implementation. We specialize in conducting thorough VAPT for web applications and APIs, ensuring that your systems are secure and resilient against vulnerabilities. Your focus on a clean and professional VAPT report, along with remediation recommendations, aligns perfectly with our approach. We understand the importance of providing a detailed assessment that includes vulnerability severity and risk ratings. With a strong background in cybersecurity, proven VAPT experience, and relevant industry certifications, we are equipped to deliver comprehensive testing and actionable insights tailored to your needs. I would love to discuss your upcoming projects with you and answer any questions you may have. Kind Regards, Stacey

@Digitalizers010

Hi, a grey box VAPT over the web app, its REST endpoints and the WebSocket layer. Scanners won't catch the role boundary bugs. How we work: map the app once per role, then manual passes with Burp against OWASP WSTG and the API Top 10, WebSocket frames replayed by hand, with reproduction steps in the report and a retest after your fixes. Is there a staging environment? We built the JS Bank call centre, so we test from the build side: findings come with the fix. Happy to start with the REST scope. Regards, Digitalizers

@shivamhardia

Hey I checked the requirements carefully and I can help you assess and strengthen the security of your web application and APIs through a structured VAPT engagement covering web, REST, and WebSocket APIs, including grey-box testing across different user roles. I am working with my team and my QA team includes a senior QA professional with 10+ years of hands-on experience who is highly skilled in finding security, authorization, validation, API, and application-level issues. We have worked with international clients, including one of the fastest-growing UK-based construction companies and an Australia-based ticketing platform. Across our projects, we perform comprehensive testing based on the product’s requirements, including functional, API, security, regression, performance, and other relevant testing. We will provide a professional VAPT report with severity ratings, evidence, reproduction steps, remediation guidance, and an executive summary, with retesting after fixes if required. Can you provide a staging environment and test credentials for the different user roles? I would like to invite you in chat to discuss the approach and all in detailed requirements and proceed accordingly. Let's connect. Thanks!