Web Reference: Jul 26, 2015 · I've created a deck of cards highlighting dangerous Python functions like eval (), exec (), and input () that can cause security vulnerabilities or unexpected behavior. It seems simple to me: eval is a vector for code injection, and is dangerous in a way that most other Python functions are not. That doesn't mean you shouldn't use it at all, but I think you should use it judiciously. The exec() function supports the dynamic execution of Python code. The exec()function can be dangerous if it is used to execute dynamic content (non-literal content). If this dynamic content has an input controllable by a user, it can cause a code injection vulnerability. Example:
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