prototype-pollution

To test for prototype pollution in JavaScript applications, you need to probe merge points in object structures using specific payloads. This skill provides testing patterns to identify vulnerable code paths in both client-side and server-side environments.

A prototype pollution exploit gadget is a code pattern that allows injected properties to trigger dangerous actions. This skill provides payload examples that demonstrate how merging user input into objects can ultimately lead to remote code execution vulnerabilities.

Yes, you can use prototype pollution testing payloads for both client-side and server-side JavaScript code. The skill provides targeted probes and patterns to detect vulnerable merge points across the entire JavaScript stack.

Detecting vulnerable merge points in JavaScript object structures involves applying targeted payloads to see if user input improperly modifies the prototype chain. This skill supplies the necessary patterns to identify these insecure object spread and inheritance behaviors.

Recommended methodologies for prototype pollution mitigation involve identifying unsafe merge operations and applying defensive object inheritance patterns. This skill suggests specific testing tools and methodologies to validate that your JavaScript stack is secure against remote code execution.

Merging user input into JavaScript objects causes prototype pollution when the merge logic improperly writes to the Object prototype. This skill explains this mechanism by providing payloads that reveal how object spread operations can be exploited.