🦸 💥 Calling all superheroes and hunters! Introducing the End of Year Holiday Extravaganza and the WordPress Superhero Challenge for the Wordfence Bug Bounty Program
Through December 9th, 2024, all in-scope vulnerability types for WordPress plugins/themes with >= 1,000 Active Installations are in-scope for ALL researchers, all plugins and themes that are hosted in the WordPress.org repository with at least 50 active installs that have been updated in the last 2 years will be in-scope for ALL researchers, the minimum bounty awarded for all in-scope submissions will be $5, and ALL researchers earn automatic bonuses of 5%-180% for valid submissions in software with 1,000 - 4,999,999 active installs, pending report limits are increased for all, and it's possible to earn up to $31,200 for high impact vulnerabilities!
Review what's in scope for your tier and updated bounties with bonuses here!
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
Share
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.
|
| Patched Versions |
Expand to see 1 more patched version.
|
This record contains material that is subject to copyright.
Copyright 2012-2024 Defiant Inc.
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. Read more.
Copyright 1999-2024 The MITRE Corporation
License: CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. Read more.
Have information to add, or spot any errors? Contact us at wfi-support@wordfence.com so we can make any appropriate adjustments.
Did you know Wordfence Intelligence provides free personal and commercial API access to our comprehensive WordPress vulnerability database, along with a free webhook integration to stay on top of the latest vulnerabilities added and updated in the database? Get started today!
Learn moreWant to get notified of the latest vulnerabilities that may affect your WordPress site?
Install Wordfence on your site today to get notified immediately if your site is affected by a vulnerability that has been added to our database.
The Wordfence Intelligence WordPress vulnerability database is completely free to access and query via API. Please review the documentation on how to access and consume the vulnerability data via API.
Documentation