GHSA-vfgc-c76h-mwh4 Drupal core Cross-Site Scripting (XSS) vulnerabilities
Attackers with content creation privileges can exploit XSS in CKEditor to target administrators, potentially leading to account takeover or privilege escalation.
- 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
- Available
What is GHSA-vfgc-c76h-mwh4?
GHSA-vfgc-c76h-mwh4 is a cross-site scripting vulnerability in drupal/core, published on 15 May 2024. 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 Drupal project uses the CKEditor, library for WYSIWYG editing. CKEditor has released a security update that impacts Drupal.
Vulnerabilities are possible if Drupal is configured to allow use of the CKEditor library for WYSIWYG editing. An attacker that can create or edit content (even without access to CKEditor themselves) may be able to exploit one or more Cross-Site Scripting (XSS) vulnerabilities to target users with access to the WYSIWYG CKEditor, including site admins with privileged access.
Which versions are affected by GHSA-vfgc-c76h-mwh4?
6 open source packages ship an affected version, including drupal/core.
| Package | Affected | Fixed in |
|---|---|---|
drupal/core Packagist | From 8.0.0 | 8.9.18 |
drupal/core Packagist | From 8.0.0 | 8.9.18 |
drupal/core Packagist | From 9.1.0 | 9.1.12 |
drupal/core Packagist | From 9.1.0 | 9.1.12 |
drupal/core Packagist | From 9.2.0 | 9.2.4 |
drupal/core Packagist | From 9.2.0 | 9.2.4 |
How do I fix GHSA-vfgc-c76h-mwh4?
Upgrade drupal/core to a fixed version for your release line: 8.9.18, 9.1.12 or 9.2.4.
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 GHSA-vfgc-c76h-mwh4 being exploited?
There is no known exploitation of GHSA-vfgc-c76h-mwh4 in the wild and no public exploit code.