CWE-624
Executable Regular Expression Error
AI Translation Available
The product uses a regular expression that either (1) contains an executable component with user-controlled inputs, or (2) allows a user to enable execution by inserting pattern modifiers.
Status
incomplete
Abstraction
base
Affected Platforms
Perl
PHP
Extended Description
AI Translation
Case (2) is possible in the PHP preg_replace() function, and possibly in other languages when a user-controlled input is inserted into a string that is later parsed as a regular expression.
Technical Details
AI Translation
Common Consequences
confidentiality
integrity
availability
Impacts
execute unauthorized code or commands
Detection Methods
automated static analysis
Potential Mitigations
Phases:
implementation
Descriptions:
•
The regular expression feature in some languages allows inputs to be quoted or escaped before insertion, such as \Q and \E in Perl.