CWE-393: Return of Wrong Status Code

Base

A function or operation returns an incorrect return value or status code that does not indicate the true result of execution, causing the product to modify its behavior based on the incorrect result.

This can lead to unpredictable behavior. If the function is used to make security-critical decisions or provide security-critical information, then the wrong status code can cause the product to assume that an action is safe or correct, even when it is not.

Consequences

Integrity, Other: Unexpected State, Alter Execution Logic

Recent advisories

GHSA-vcgp-9326-pqcp — net-imap vulnerable to STARTTLS stripping via invalid response timing
GHSA-9436-3gmp-4f53 — grav Server-side Template Injection (SSTI) mitigation bypass

All advisories for CWE-393

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