cve/2021/CVE-2021-33254.md

### [CVE-2021-33254](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33254)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### Description

An issue was discovered in src/http/httpLib.c in EmbedThis Appweb Community Edition 8.2.1, allows attackers to cause a denial of service via the stream paramter to the parseUri function.

### POC

#### Reference
- https://awxylitol.github.io/2021/05/09/embedthis-appweb-npd-bug.html

#### Github
- https://github.com/20142995/nuclei-templates
- https://github.com/cyb3r-w0lf/nuclei-template-collection
Update Sat May 25 21:48:12 CEST 2024 2024-05-25 21:48:12 +02:00			`### [CVE-2021-33254](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33254)`
			`![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)`
Update CVE list 2025-09-29 21:09 2025-09-29 21:09:30 +02:00			`![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)`
			`![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)`
Update Sat May 25 21:48:12 CEST 2024 2024-05-25 21:48:12 +02:00
			`### Description`

			`An issue was discovered in src/http/httpLib.c in EmbedThis Appweb Community Edition 8.2.1, allows attackers to cause a denial of service via the stream paramter to the parseUri function.`

			`### POC`

			`#### Reference`
			`- https://awxylitol.github.io/2021/05/09/embedthis-appweb-npd-bug.html`

			`#### Github`
Update CVE list 2025-09-29 21:09 2025-09-29 21:09:30 +02:00			`- https://github.com/20142995/nuclei-templates`
			`- https://github.com/cyb3r-w0lf/nuclei-template-collection`
Update Sat May 25 21:48:12 CEST 2024 2024-05-25 21:48:12 +02:00