CWE-624

• CWE ID
• 624

• CWE Name
• Executable Regular Expression Error

• CWE Abstraction
• Base

• CWE structure
• Simple

• CWE Status
• Incomplete

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.

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.