### [CVE-2021-24604](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24604) ![](https://img.shields.io/static/v1?label=Product&message=Availability%20Calendar&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=1.2.2%20&color=brightgreen) ![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-79%20Cross-site%20Scripting%20(XSS)&color=brightgreen) ### Description The Availability Calendar WordPress plugin before 1.2.2 does not sanitise or escape its Category Names before outputting them in page/post where the associated shortcode is embed, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed ### POC #### Reference - https://wpscan.com/vulnerability/d084c5b1-45f1-4e7e-b3e9-3c98ae4bce9c #### Github - https://github.com/20142995/nuclei-templates