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VAPTApplication security

Web Application Penetration Testing

Find and fix the vulnerabilities attackers would exploit in your web applications — from broken access control and injection to business-logic flaws — tested by hand by experienced security engineers.

OWASP Top 10 & SANS 25Expert-led manual testingRisk-based report
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ConfidentialISO 27001 certifiedNo spam, ever
100+Projects delivered
5 minAverage response time
Top 10OWASP categories covered
100%Client satisfaction

    Overview

    Find the flaws before they cost you

    Web application penetration testing identifies security vulnerabilities, prevents cyber attacks, protects sensitive data and strengthens your overall security posture. We combine automated discovery with deep manual testing, so you get real, exploitable findings — not a list of scanner noise.

    AUTOMATED SCANNERXTREME INFOSEC PENTEST
    Known vulnerabilities✓✓
    Business-logic flaws✕✓
    Access control & privilege issuesLimited✓
    Chained, multi-step attacks✕✓
    False positives removed✕✓
    Developer fix guidance & support✕✓

    Without regular testing, you risk:

    • ●Increased risk of cyber attacks
    • ●Sensitive customer data exposure
    • ●Unauthorized system access by attackers
    • ●Financial and reputational damage
    • ●Critical vulnerabilities going undetected
    Protect my application

    or call +91 98183 63944

    Cost estimate

    How much does web application VAPT cost?

    Enter your app’s size for an instant indicative price — budget-friendly rates, usually lower than other VAPT firms.

    Your application

    Timeline

    INDICATIVE PRICE
    —

    • ✓Manual, expert-led testing
    • ✓Detailed report with fixes
    • ✓Free retest included
    Compare all VAPT prices →

    Indicative only. Your fixed quote is confirmed after a short scoping call.

    What we test

    Every OWASP Top 10 risk — explained

    Click a category to see what we look for and an example of what we find.

    Broken Access Control

    The most common serious web flaw: users reaching data or actions that should be off-limits.

    WHAT WE TEST

    • IDOR on every object ID
    • Horizontal & vertical privilege escalation
    • Forced browsing to admin functions
    • Missing checks on APIs

    EXAMPLE FINDING

    GET /api/v2/invoices/10482
    → returns another customer’s invoice
    HIGH · any user can read all invoices

    Cryptographic Failures

    Sensitive data that is weakly protected in transit or at rest.

    WHAT WE TEST

    • TLS configuration & HSTS
    • Weak hashing of passwords
    • Secrets in code, URLs or logs
    • Insecure token generation

    EXAMPLE FINDING

    Password reset token = md5(email)
    → predictable, account takeover
    CRITICAL

    Injection

    Untrusted input that changes how your queries or commands run.

    WHAT WE TEST

    • SQL & NoSQL injection
    • OS command & template injection
    • Reflected, stored & DOM XSS
    • Header & log injection

    EXAMPLE FINDING

    email=admin' OR '1'='1' --
    → logged in as administrator
    CRITICAL · full login bypass

    Insecure Design

    Flaws built into the workflow itself — no patch fixes them, only better design.

    WHAT WE TEST

    • Trust boundaries between roles
    • Multi-step workflow bypass
    • Abuse of intended features
    • Missing anti-automation

    EXAMPLE FINDING

    Step 3 of KYC can be called
    directly → verification skipped
    HIGH

    Security Misconfiguration

    Default settings and small oversights that hand attackers a head start.

    WHAT WE TEST

    • Security headers & CORS
    • Verbose errors & stack traces
    • Exposed admin & debug panels
    • Cloud storage permissions

    EXAMPLE FINDING

    /actuator/env publicly reachable
    → database password exposed
    CRITICAL

    Vulnerable & Outdated Components

    Libraries and frameworks with publicly known exploits.

    WHAT WE TEST

    • Framework & CMS versions
    • JavaScript libraries
    • Server software & plugins
    • Known CVEs with exploits

    EXAMPLE FINDING

    jQuery 1.8.3 in use
    → known XSS vulnerabilities
    MEDIUM

    Identification & Authentication Failures

    Weaknesses in login, sessions and account recovery.

    WHAT WE TEST

    • Brute-force & rate limiting
    • MFA bypass
    • Session fixation & timeout
    • Password reset flows

    EXAMPLE FINDING

    OTP endpoint has no rate limit
    → 4-digit OTP brute-forced
    HIGH · account takeover

    Software & Data Integrity Failures

    Code or data trusted without verifying where it came from.

    WHAT WE TEST

    • Insecure deserialization
    • Unsigned updates & scripts
    • CI/CD pipeline trust
    • Client-side data tampering

    EXAMPLE FINDING

    Cart total sent from browser
    → price changed to ₹1
    HIGH

    Security Logging & Monitoring Failures

    Attacks that would happen without anyone noticing.

    WHAT WE TEST

    • Failed login alerting
    • Audit trails for sensitive actions
    • Log tampering & injection
    • Incident visibility

    EXAMPLE FINDING

    5,000 failed logins in 10 min
    → no alert raised
    MEDIUM

    Server-Side Request Forgery

    Tricking your server into calling internal systems on an attacker’s behalf.

    WHAT WE TEST

    • URL fetch & webhook features
    • Cloud metadata access
    • Internal port scanning
    • File import from URL

    EXAMPLE FINDING

    image_url=http://169.254.169.254/
    → cloud credentials leaked
    CRITICAL

    Business-Logic Flaws

    Issues unique to your application that no scanner can find — and attackers love.

    WHAT WE TEST

    • Price & quantity manipulation
    • Coupon & referral abuse
    • Race conditions
    • Workflow & approval bypass

    EXAMPLE FINDING

    Same coupon applied 20× in parallel
    → order total becomes negative
    HIGH
    Process

    From first call to fixed vulnerabilities

    01

    Planning

    We define the testing scope, target assets, application architecture, objectives, rules and methodology before testing begins.

    02

    Reconnaissance & mapping

    Every page, role, endpoint and integration is mapped to build the attack surface.

    03

    Manual testing & exploitation

    OWASP Top 10, SANS 25 and business-logic testing using real-world attack techniques.

    04

    Risk-based report

    Executive summary, CVSS-rated findings, proof of concept and step-by-step fixes.

    05

    Remediation support

    Fast guidance for your developers until every critical issue is closed.

    Engagements

    Pick the engagement that fits

    Every engagement is scoped to your application. Tell us what you need and we’ll send a fixed quote.

    ESSENTIAL

    Single application

    A focused test of one web application before launch or audit.

    • OWASP Top 10 coverage
    • Black or grey box
    • Risk-based report
    • Remediation guidance
    Get a quote
    MOST POPULAR

    Comprehensive

    Web app plus its APIs, multiple user roles and business logic.

    • Everything in Essential
    • APIs & integrations
    • Business-logic testing
    • Executive + technical reports
    • Priority remediation support
    Get a quote
    CONTINUOUS

    Ongoing testing

    Regular testing for teams that ship new features often.

    • Scheduled test cycles
    • New features tested as they ship
    • Trend reporting over time
    • Dedicated security contact
    Talk to us
    “Their penetration testing methodology was thorough and aligned with OWASP standards. The final report was detailed, actionable, and easy for our developers to understand.”
    Shaik Ajur★★★★★
    “Xtreme InfoSec identified critical vulnerabilities that other vendors missed, with excellent remediation support.”
    William John★★★★★
    FAQ

    Questions before you start

    How long does a web application pentest take?−

    It depends on the size of the application and number of user roles. After a short scoping call we share a fixed timeline and quote.

    Will testing affect our live users?+

    We follow agreed rules of engagement and safe techniques. Testing can run on staging or outside business hours if you prefer.

    What do you need from us?+

    The application URL, test accounts for each role and a point of contact. For white-box testing, access to source code.

    Do you help us fix the issues?+

    Yes — every finding includes fix steps, and our team supports your developers during remediation.

    Get started

    Find out how secure your web app really is

    Book a free scoping call. You’ll get clear recommendations, a timeline and a fixed quote — whether you go ahead with us or not.

    +91 98183 63944

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