CVE-2021-32828 Regular expression Denial of Service in MooTools
Attackers can inject scripts via the OAuth2 API, potentially escalating to remote code execution through the automation API.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-32828?
CVE-2021-32828 is a medium-severity cross-site scripting vulnerability in Hyland Nuxeo, published on 5 Jan 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
The Nuxeo Platform is an open source content management platform for building business applications. In version 11.5.109, the `oauth2` REST API is vulnerable to Reflected Cross-Site Scripting (XSS). This XSS can be escalated to Remote Code Execution (RCE) by levering the automation API.
Which versions are affected by CVE-2021-32828?
2 open source packages ship an affected version, including org.nuxeo.ecm.platform:nuxeo-platform-oauth. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.nuxeo.ecm.platform:nuxeo-platform-oauth Maven | All versions to 10.10 | None |
org.nuxeo.ecm.platform:nuxeo-platform-oauth Maven | All versions to 10.10 | None |
Products include Hyland Nuxeo.
How do I fix CVE-2021-32828?
No fix has been published for CVE-2021-32828 yet. Limit exposure of the affected software until one is available.
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-2021-32828 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-32828 exists.
Sources
Also known as GHSA-x347-fc9w-w7c3.