# 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.

- **Severity:** Not scored
- **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:** Yes
- **Published:** 15 May 2024

## 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 | Ecosystem | 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.

## 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.

## Fix prompt for AI coding agents

```text
Check this codebase for GHSA-vfgc-c76h-mwh4 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of GHSA-vfgc-c76h-mwh4 in the wild and no public exploit code.

Affected packages and fixed versions:
- drupal/core (Packagist): affected from 8.0.0; fixed in 8.9.18
- drupal/core (Packagist): affected from 8.0.0; fixed in 8.9.18
- drupal/core (Packagist): affected from 9.1.0; fixed in 9.1.12
- drupal/core (Packagist): affected from 9.1.0; fixed in 9.1.12
- drupal/core (Packagist): affected from 9.2.0; fixed in 9.2.4
- drupal/core (Packagist): affected from 9.2.0; fixed in 9.2.4

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/GHSA-vfgc-c76h-mwh4/ (Markdown: https://insights.sbomify.com/GHSA-vfgc-c76h-mwh4/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GHSA-vfgc-c76h-mwh4

---
From sbomify Insights: https://insights.sbomify.com/GHSA-vfgc-c76h-mwh4/
Summaries are generated and may contain mistakes; the official description above is the record.