CWE-52

Path Equivalence: '/multiple/trailing/slash//'
AI Translation Available

The product accepts path input in the form of multiple trailing slash ('/multiple/trailing/slash//') without appropriate validation, which can lead to ambiguous path resolution and allow an attacker to traverse the file system to unintended locations or access arbitrary files.

Status
incomplete
Abstraction
variant
Not Technology-Specific Web Based

Common Consequences

confidentiality integrity
Impacts
read files or directories modify files or directories

Potential Mitigations

Phases:
implementation
Descriptions:
• Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.

Functional Areas

file processing