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Ahmed Khan's avatar
Ahmed Khan
Lahore, Pakistan
Cybersecurity specialist with ability to identify flaws
New to Contra
Cybersecurity specialist with ability to identify flaws
Cover image for I discovered a stored cross-site
I discovered a stored cross-site scripting (XSS) vulnerability in a practice web application's comment section that allowed me to inject malicious JavaScript that would execute in any user's browser. By submitting a comment containing a script payload, I successfully stole session cookies from other users and could have hijacked their accounts, performed actions on their behalf, or defaced the website. This finding was documented in a comprehensive report including proof-of-concept screenshots showing cookie theft, CVSS risk scoring of 6.5 (Medium), and step-by-step remediation guidance including input sanitization and output encoding. This assessment demonstrates my ability to find client-side vulnerabilities that can compromise every user visiting the site.
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Cover image for I discovered a SQL injection
I discovered a SQL injection vulnerability in a practice web application that allowed me to bypass the login system and access the entire user database without any credentials. By inserting a simple payload into the username field, I successfully logged in as the first user in the database and extracted sensitive information including usernames, password hashes, and user email addresses. This finding was documented in a detailed report with proof-of-concept screenshots, risk analysis showing potential data breach impact, and step-by-step remediation guidance including parameterized queries and input validation. This assessment demonstrates my ability to find critical database vulnerabilities that could expose thousands of customer records.
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Cover image for During a security assessment of
During a security assessment of a practice web application, I discovered an exposed FTP directory with directory listing enabled, revealing multiple sensitive files including a password database, backup configurations, compiled source code, and error logs. After finding a clue in robots.txt, I navigated to the /ftp directory and documented over ten exposed files with their associated risks. My final report included an executive summary, detailed findings with screenshots, risk ratings for each exposed file, and step-by-step remediation guidance including disabling directory listing and removing sensitive data. This finding highlights how simple misconfigurations can lead to critical data exposure.
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Cover image for I discovered an Insecure Direct
I discovered an Insecure Direct Object Reference (IDOR) vulnerability in a practice web application that allowed unauthorized users to access other people's private snippets simply by changing a number in the URL. Using whatweb and manual inspection, I identified parameter tampering points and successfully accessed private data for five different users without authentication. The finding was documented in a comprehensive report including executive summary, technical details with screenshots, CVSS risk scoring, and step-by-step remediation instructions. This assessment demonstrates my ability to find broken access controls that automated tools miss and deliver clear, actionable fixes.
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Kali Linux(4)
Muhamed Ali's avatar
Muhamed Ali
Egypt
Versatile Cybersecurity & HR Expert
Versatile Cybersecurity & HR Expert
Cover image for Training project , Enhancing Security Awareness: Understanding t
Training project , Enhancing Security Awareness: Understanding t
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Cover image for Onsite Network Pentest
Onsite Network Pentest
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Cover image for Onion Circuit for a special purpose research client
Onion Circuit for a special purpose research client
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Kali Linux(3)
Nitin Yadav's avatar
Nitin Yadav
Gurugram, India
Top-Notch Cybersecurity & Penetration Testing
Top-Notch Cybersecurity & Penetration Testing
Cover image for Pen-Test for Real Estate Marketing Platform
Pen-Test for Real Estate Marketing Platform
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Cover image for Security Assessment of Satellite Comm GUI System
Security Assessment of Satellite Comm GUI System
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Cover image for Comprehensive Web Application Penetration Testing
Comprehensive Web Application Penetration Testing
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Kali Linux(3)
Tabrez alam's avatar
Tabrez alam
Patna, India
DevOps & Solution Architecture | Artificial Intelligence
New to Contra
DevOps & Solution Architecture | Artificial Intelligence
Cover image for Zetawa Dark's Innovative Software Solutions
Zetawa Dark's Innovative Software Solutions
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Cover image for This report describes the process of deploying the Zetawa we...
This report describes the process of deploying the Zetawa website from Hostinger hosting to the Vercel cloud platform. The purpose of this deployment was to improve website performance and manage the domain efficiently using DNS records. The Zetawa website was successfully deployed from Hostinger to Vercel. The website is now live on the custom domain with proper DNS configuration, improved deployment workflow, and stable performance.
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Cover image for We are an Android development team focused on building and d...
We are an Android development team focused on building and deploying high-quality, user-friendly, and performance-optimised apps on the Google Play Store. We manage the complete app lifecycle-from development and testing to deployment and support-while following best practices and Google Play policies. Details:- 1. Android App Development Native Android app development using Java and/or Kotlin 2. Testing & Quality Assurance Manual and automated testing Bug fixing and performance improvements 3. Google Play Console Deployment Creation and management of Google Play Console accounts Version management and release tracks (Internal, Closed, Open, Production) 4. Post-Launch Support & Maintenance App updates and feature enhancements Crash monitoring and analytics 5. Security & Compliance Secure data handling and permissions management
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Cover image for Security is one of the important aspects in computing. In da...
Security is one of the important aspects in computing. In data transfer, security must be considered as one of the method implemented to ensure secure data transfer. Data transfer is transferring information from a location or host to another host, or server. To have a secure data transfer, The primary goal of any system is that the data cannot be modified by any external user or intruder. To avoid such a type of situation convert data into a non-readable form at sender side and convert that data in readable form again at receiver side. Data security- how to prevent someone else from knowing the contents of a message while it is being transmitted. Encryption - transform information into a different,Decryption - restore the original information from the encrypted form. Plaintext - original data. Cipher text - encrypted data.
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Kali Linux(1)
Nirjhar Banik's avatar
Nirjhar Banik
Kolkata, India
Cybersecurity & QA: Affordable Expert Solutions
Cybersecurity & QA: Affordable Expert Solutions
Cover image for Securing Flagship Products: P0 Bug Fixes, API Rate-Limiting
Securing Flagship Products: P0 Bug Fixes, API Rate-Limiting
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Cover image for Accelerated Security & QA Excellence
Accelerated Security & QA Excellence
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Cover image for Accelerated Test Automation & Fortified Security
Accelerated Test Automation & Fortified Security
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Sunny Saini's avatar
Sunny Saini
Hariana, India
Cybersecurity Specialist | Web Developer | UI/UX Designer
Cybersecurity Specialist | Web Developer | UI/UX Designer
Cover image for Vulnerability Assessment and Penetration Testing (VAPT) for Star
Vulnerability Assessment and Penetration Testing (VAPT) for Star
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Cover image for UI Design & Frontend Development for AGZA NGO Website
UI Design & Frontend Development for AGZA NGO Website
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Cover image for Development and UI/UX Design of HexaDefend
Development and UI/UX Design of HexaDefend
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Kali Linux(1)