### [CVE-2021-32670](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32670)
![](https://img.shields.io/static/v1?label=Product&message=datasette&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%200.56.1%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-79%3A%20Improper%20Neutralization%20of%20Input%20During%20Web%20Page%20Generation%20('Cross-site%20Scripting')&color=brightgreen)

### Description

Datasette is an open source multi-tool for exploring and publishing data. The `?_trace=1` debugging feature in Datasette does not correctly escape generated HTML, resulting in a [reflected cross-site scripting](https://owasp.org/www-community/attacks/xss/#reflected-xss-attacks) vulnerability. This vulnerability is particularly relevant if your Datasette installation includes authenticated features using plugins such as [datasette-auth-passwords](https://datasette.io/plugins/datasette-auth-passwords) as an attacker could use the vulnerability to access protected data. Datasette 0.57 and 0.56.1 both include patches for this issue. If you run Datasette behind a proxy you can workaround this issue by rejecting any incoming requests with `?_trace=` or `&_trace=` in their query string parameters.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/n0-traces/cve_monitor