[Solved] Why might using module_eval with strings be risky or discouraged in some Ruby applications? — Ans: Because it can execute arbitrary code leading to security vulnerabilities | Ruby

Ruby - Advanced Metaprogramming

Why might using module_eval with strings be risky or discouraged in some Ruby applications?

ABecause it always causes syntax errors

BBecause it can execute arbitrary code leading to security vulnerabilities

CBecause it prevents method overriding

DBecause it makes modules immutable

Step-by-Step Solution

Solution:

Step 1: Understand risks of evaluating strings as code
Using module_eval with strings executes code dynamically, which can be dangerous if the string content is not trusted.
Step 2: Analyze options
Because it can execute arbitrary code leading to security vulnerabilities correctly identifies security risks. Options A, C, and D are incorrect or unrelated.
Final Answer:
Because it can execute arbitrary code leading to security vulnerabilities -> Option B
Quick Check:
String eval risks = Security vulnerability [OK]

Quick Trick: Avoid untrusted strings in module_eval to prevent security issues [OK]

Common Mistakes:

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