CVEs-PoC/2021/CVE-2021-23824.md

### [CVE-2021-23824](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23824)
![](https://img.shields.io/static/v1?label=Product&message=Crow&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%200.3%2B4%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Content%20Injection&color=brighgreen)

### Description

This affects the package Crow before 0.3+4. When using attributes without quotes in the template, an attacker can manipulate the input to introduce additional attributes, potentially executing code. This may lead to a Cross-site Scripting (XSS) vulnerability, assuming an attacker can influence the value entered into the template. If the template is used to render user-generated content, this vulnerability may escalate to a persistent XSS vulnerability.

### POC

#### Reference
- https://snyk.io/vuln/SNYK-UNMANAGED-CROW-2336164

#### Github
- https://github.com/Kirill89/Kirill89