Business Logic Exploitation
Exploit flaws in application workflow, authentication bypass, price manipulation, and privilege escalation by abusing intended business logic rather than technical vulnerabilities.
HackIndex.io
Language
HTTP/HTTPS:
RCE, SQLi, XSS, LFI, SSRF, XXE, JWT, file upload and more
Exploit flaws in application workflow, authentication bypass, price manipulation, and privilege escalation by abusing intended business logic rather than technical vulnerabilities.
Exploiting UI redress attacks by overlaying transparent iframes to hijack user clicks, steal credentials, or trigger unauthorized actions on vulnerable web applications.
Exploit command injection vulnerabilities in web apps via HTTP/HTTPS, covering payload crafting, bypass techniques, and OS command execution through user-supplied input.
Exploiting misconfigured CORS policies to bypass same-origin restrictions, steal credentials, and perform cross-origin requests using crafted malicious origins.
Exploiting CRLF injection to manipulate HTTP headers, inject malicious responses, perform response splitting, and achieve session hijacking or XSS attacks.
Exploit Cross-Site Request Forgery vulnerabilities to force authenticated users into executing unwanted actions via crafted malicious HTTP requests.
Exploits CVE-2025-54068, a critical Livewire RCE vulnerability via malicious component payloads over HTTP/HTTPS to achieve remote code execution.
Exploit path traversal vulnerabilities in web apps to access files outside the webroot using encoded sequences like ../to read sensitive system files.
Exploit client-side DOM vulnerabilities by injecting malicious scripts into unsafe sinks via tainted sources, bypassing server-side filters in web applications.
Exploit Local and Remote File Inclusion vulnerabilities in web apps to read sensitive files, achieve RCE, and bypass filters via path traversal and log poisoning.
Exploit exposed .git directories to reconstruct source code, extract credentials, and uncover sensitive application logic from misconfigured web servers.
Exploit GraphQL APIs via introspection abuse, query batching, field stuffing, and injection attacks to extract data or escalate privileges.
Exploiting misconfigured HTTP Host headers to manipulate web app logic, bypass access controls, poison caches, and trigger SSRF or password reset vulnerabilities.
Exploiting duplicate HTTP parameters to bypass WAFs, override values, and manipulate backend logic through inconsistent multi-layer parameter parsing.
Exploit Insecure Direct Object Reference vulnerabilities by manipulating parameter values to access unauthorised resources via HTTP requests.
Exploiting insecure deserialization over HTTP/HTTPS to achieve RCE, privilege escalation, or authentication bypass via crafted serialized payloads.
Core JavaScript concepts for crafting XSS payloads: DOM manipulation, event handlers, data exfiltration, and bypassing input sanitisation filters.
Covers attacking JWT authentication flaws including signature bypass, algorithm confusion (none/RS256→HS256), weak secret cracking, and claim manipulation to escalate privileges.
Exploiting CVE-2021-3129 in Laravel Ignition to achieve RCE via malicious log file deserialization through the debug mode endpoint.
Exploit NoSQL databases via malformed queries, operator abuse, and authentication bypass targeting MongoDB, CouchDB, and similar non-relational backends.
Exploiting PHP's loose type comparison operators to bypass authentication and logic checks via unexpected type coercion behaviours.
Exploiting prototype pollution vulnerabilities in JavaScript to manipulate object inheritance chains via HTTP, enabling privilege escalation and remote code execution.
Exploit time-of-check to time-of-use (TOCTOU) flaws in web apps via concurrent HTTP requests to bypass auth, duplicate transactions, or escalate privileges.
Web exploitation takes confirmed vulnerabilities and turns them into impact. This covers the full range of web attacks: SQL injection (union, blind, error-based, time-based), cross-site scripting, server-side request forgery, server-side template injection, XXE, command injection, local and remote file inclusion, insecure deserialization, authentication bypass, and file upload abuse.
Each technique has its own tooling and methodology. sqlmap handles automated SQL injection, but manual union queries give you precision. SSTI payloads vary by template engine (Jinja2, Twig, Freemarker). XXE exploitation depends on parser behavior and whether out-of-band channels are available. File upload attacks chain with path traversal or webshell execution depending on server configuration.
The subpages walk through each vulnerability class from identification to achieving a shell, data access, or further pivot point into the target environment.
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