Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wordpress | Wordpress | >= 5.0, < 5.8 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-wh69-25hThird Party Advisory
- https://hackerone.com/reports/1142140Permissions Required
- https://www.debian.org/security/2021/dsa-4985Third Party Advisory
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-wh69-25hThird Party Advisory
- https://hackerone.com/reports/1142140Permissions Required
- https://www.debian.org/security/2021/dsa-4985Third Party Advisory
FAQ
What is CVE-2021-39201?
CVE-2021-39201 is a vulnerability with a CVSS score of 7.6 (HIGH). 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 con...
How severe is CVE-2021-39201?
CVE-2021-39201 has been rated HIGH with a CVSS base score of 7.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-39201?
Check the references section above for vendor advisories and patch information. Affected products include: Wordpress Wordpress, Debian Debian Linux.