CVEs-PoC/2021/CVE-2021-24927.md

### [CVE-2021-24927](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24927)
![](https://img.shields.io/static/v1?label=Product&message=My%20Calendar&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=3.2.18%3C%203.2.18%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-79%20Cross-site%20Scripting%20(XSS)&color=brighgreen)

### Description

The My Calendar WordPress plugin before 3.2.18 does not sanitise and escape the callback parameter of the mc_post_lookup AJAX action (available to any authenticated user) before outputting it back in the response, leading to a Reflected Cross-Site Scripting issue

### POC

#### Reference
- https://wpscan.com/vulnerability/86f3acc7-8902-4215-bd75-6105d601524e

#### Github
- https://github.com/ARPSyndicate/cvemon