### [CVE-2019-16520](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16520)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

The all-in-one-seo-pack plugin before 3.2.7 for WordPress (aka All in One SEO Pack) is susceptible to Stored XSS due to improper encoding of the SEO-specific description for posts provided by the plugin via unsafe placeholder replacement.

### POC

#### Reference
- http://www.openwall.com/lists/oss-security/2019/10/16/5
- https://github.com/sbaresearch/advisories/tree/public/2019/SBA-ADV-20190913-04_WordPress_Plugin_All_in_One_SEO_Pack
- https://wpvulndb.com/vulnerabilities/9915

#### Github
- https://github.com/SexyBeast233/SecBooks