cve/2024/CVE-2024-34078.md

### [CVE-2024-34078](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-34078)
![](https://img.shields.io/static/v1?label=Product&message=html-sanitizer&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20%3C%202.4.2%20&color=brighgreen)
![](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=brighgreen)

### Description

html-sanitizer is an allowlist-based HTML cleaner. If using `keep_typographic_whitespace=False` (which is the default), the sanitizer normalizes unicode to the NFKC form at the end. Some unicode characters normalize to chevrons; this allows specially crafted HTML to escape sanitization. The problem has been fixed in 2.4.2.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/fkie-cad/nvd-json-data-feeds