CVE-2021-39201
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.
Does this matter?
Lower severity and a low EPSS score (1.49%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.49% probability · 73th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- wordpress/wordpress · debian/debian linux
- Source
- security-advisories@github.com
References
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-wh69-25hr-h94vThird 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-wh69-25hr-h94vThird Party Advisory
- https://hackerone.com/reports/1142140Permissions Required
- https://www.debian.org/security/2021/dsa-4985Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.