A cross-site scripting (XSS) vulnerability in Known v1.2.2+2020061101 allows authenticated attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Your Name text field.
https://github.com/advisories/GHSA-g688-7j3c-h9f3
https://blog.jitendrapatro.me/multiple-vulnerabilities-in-idno-known-php-cms-software/