CVE-2023-41167 @webiny/react-rich-text-renderer vulnerable to insecure rendering of rich text content
Content managers can inject malicious scripts via rich text content, leading to XSS execution in user browsers due to missing sanitization.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-41167?
CVE-2023-41167 is a medium-severity cross-site scripting vulnerability in n/a, published on 25 Aug 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
@webiny/react-rich-text-renderer before 5.37.2 allows XSS attacks by content managers. This is a react component to render data coming from Webiny Headless CMS and Webiny Form Builder. Webiny is an open-source serverless enterprise CMS. The @webiny/react-rich-text-renderer package depends on the editor.js rich text editor to handle rich text content. The CMS stores rich text content from the editor.js into the database. When the @webiny/react-rich-text-renderer is used to render such content, it uses the dangerouslySetInnerHTML prop, without applying HTML sanitization. The issue arises when an actor, who in this context would specifically be a content manager with access to the CMS, inserts a malicious script as part of the user-defined input. This script is then injected and executed within the user's browser when the main page or admin page loads.
Weakness: CWE-79
Which versions are affected by CVE-2023-41167?
2 open source packages ship an affected version, including @webiny/react-rich-text-renderer. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
@webiny/react-rich-text-renderer npm | All versions | 5.37.2 |
@webiny/react-rich-text-renderer npm | All versions | 5.37.2 |
Products include Webiny Webiny.
How do I fix CVE-2023-41167?
Upgrade @webiny/react-rich-text-renderer to 5.37.2 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2023-41167 being exploited?
There is no known exploitation of CVE-2023-41167 in the wild and no public exploit code.
Sources
Also known as GHSA-3x59-vrmc-5mx6.