'sanitize-html' prior to version 1.0.3 is vulnerable to Cross-site Scripting (XSS). The function 'naughtyHref' doesn't properly validate the hyperreference (`href`) attribute in anchor tags (`<a>`), allowing bypasses that contain different casings, whitespace characters, or hexadecimal encodings.
https://github.com/apostrophecms/sanitize-html/issues/1
https://github.com/apostrophecms/sanitize-html/commit/889d4ec968e175f1905b2eb9d33f1fa89217cb02
https://github.com/apostrophecms/sanitize-html/commit/423b90e06e1e85245eccedaabeb3a82840c6cd86
https://github.com/Checkmarx/Vulnerabilities-Proofs-of-Concept/tree/main/2014/CVE-2014-125128