GHSA-g7xq-xv8c-h98c: Cross-site Scripting (XSS) possible due to improper sanitisation of `href` attributes on `<a>` tags

There is a potential cross-site scripting (XSS) vulnerability that can be exploited via maliciously crafted user data.

Our filter to detect and prevent the use of the javascript: URL scheme in the href attribute of an <a> tag could be bypassed with tab \t or newline \n characters between the characters of the protocol, e.g. java\tscript:.