wrdn-code-execution

To detect untrusted input reaching code execution sinks, trace user input from sources like webhook payloads to subprocess calls, template renderers, or deserialization routines, validating paths against library versions and mitigations.

Deserialization and template injection vulnerabilities occur when untrusted input flows into sinks that execute code or render templates, enabling attacker-controlled commands, gadgets, or exploits without proper validation.

You can trace RCE vulnerabilities across languages and frameworks by mapping untrusted input sources to code execution sinks, applying heuristics to evaluate subprocess calls, XML parsing, and deep merges regardless of language.

Prioritize fixes for code execution vulnerabilities by assessing library versions, validators, and mitigations along the trace path from untrusted input sources to sinks, guiding remediation and verification efforts.

Deep merge and XML parsing create code execution risks when untrusted input reaches these operations as sinks, allowing attackers to trigger gadgets or execute commands if proper validation and library version checks are absent.