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)
References
Link | Resource |
---|---|
https://hackerone.com/reports/1142140 | Permissions Required |
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-wh69-25hr-h94v | Third Party Advisory |
https://www.debian.org/security/2021/dsa-4985 | Third Party Advisory |
Information
Published : 2021-09-09 15:15
Updated : 2021-12-14 13:20
NVD link : CVE-2021-39201
Mitre link : CVE-2021-39201
JSON object : View
CWE
CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Products Affected
debian
- debian_linux
wordpress
- wordpress