CVEs-PoC/2021/CVE-2021-24857.md

### [CVE-2021-24857](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24857)
![](https://img.shields.io/static/v1?label=Product&message=ToTop%20Link&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=1.7.1%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-502%20Deserialization%20of%20Untrusted%20Data&color=brightgreen)

### Description

The ToTop Link WordPress plugin through 1.7.1 passes base64 encoded user input to the unserialize() PHP function, which could lead to PHP Object injection if a plugin installed on the blog has a suitable gadget chain.

### POC

#### Reference
- https://wpscan.com/vulnerability/518204d8-fbf5-4bfa-9db5-835f908f8d8e

#### Github
- https://github.com/20142995/nuclei-templates