CAPEC-267 : Leverage Alternate Encoding
An adversary leverages the possibility to encode potentially harmful input or content used by applications such that the applications are ineffective at validating this encoding standard.
https://capec.mitre.org/data/definitions/267.htmlRelated CWE definitions
The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.
The product allows user input to control or influence paths or file names that are used in filesystem operations.
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
The product does not properly encode or decode the data, resulting in unexpected values.
The product does not properly handle when an input uses an alternate encoding that is valid for the control sphere to which the input is being sent.
The product validates input before it is canonicalized, which prevents the product from detecting data that becomes invalid after the canonicalization step.
The product validates data before it has been filtered, which prevents the product from detecting data that becomes invalid after the filtering step.
The product uses a denylist-based protection mechanism to defend against XSS attacks, but the denylist is incomplete, allowing XSS variants to succeed.
The product compares two entities in a security-relevant context, but the comparison is incorrect, which may lead to resultant weaknesses.
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