The Hidden Dangers of Crafting Your Own Regular Expressions for Input Validation
ID: 2ef76d13-6218-51ce-9ffa-39a5a7a79293
STIX ID: report--2ef76d13-6218-51ce-9ffa-39a5a7a79293
Feed Name: HackerOne Blog
This blog post warns that homemade regular expressions for input validation are error-prone, hard to maintain, and can introduce security issues such as ReDoS and false negatives; it illustrates problematic regex examples and recommends using Django's built-in validators (EmailField, URLField, password validators) and properly implemented custom validators as safer alternatives.
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