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WordPress Core 5.4 - 5.8 - Authenticated Stored Cross-Site Scripting
| CVE | CVE-2021-39201 |
|---|---|
| CVSS | 7.6 (High) |
| Publicly Published | September 9, 2021 |
| Last Updated | July 8, 2022 |
| Researcher |
Michał Bentkowski
|
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)
References
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1 affected software package
| Software Type | Core |
|---|---|
| Patched? | Yes |
| Remediation | Update to one of the following versions, or a newer patched version: 5.4.7, 5.5.6, 5.6.5, 5.7.3, 5.8.1 |
| Affected Versions |
Expand to see 1 more affected version range.
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| Patched Versions |
Expand to see 1 more patched version.
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