To ensure that your web files and pages are accessible to a wide range of users with various different devices and operating systems, it’s important to use valid URL characters. Unsafe characters are known to cause compatibility issues with various browser clients, web servers, and even lead to incompatibility issues with web application firewalls.

In this post I’ll be summarizing OWASP best practices and rfc3986 documentation to describe what a bad path is, why you should use valid URL characters, and how to properly encode characters to avoid problems.

Continue reading Bad Paths & The Importance of Using Valid URL Characters  at Sucuri Blog.

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