---
cve: "CVE-2021-39201"
severity: "HIGH"
cvss: 7.6
epss: "1.5%"
vendor: "WordPress"
kev: false
exploited: false
published: "2021-09-09 22:15:09"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T00:56:09+02:00"
---

# CVE-2021-39201

> 7.6 HIGH · 🧪 PoC

## Beschreibung

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It's strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Erforderlich | good |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 50caeb6e61ad0c49d2c7e1d6d5115047a011f590 (Commit)
- 4b54a6c2c9a3be775cc6dda66ed207998b068c8f (Commit)

## Referenzen

- <https://hackerone.com/reports/1142140>
- <https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-wh69-25hr-h94v>
- <https://www.debian.org/security/2021/dsa-4985>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2021-39201) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_