# DRUPAL-CONTRIB-2021-038: This module provides an admin interface for creating drop down menus that combine Drupal menu items with rich media content.

> Administrators can inject malicious code into front-end markup via unsanitized CSS properties in the TB Mega Menu module.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 22 Sep 2021

## What is DRUPAL-CONTRIB-2021-038?

DRUPAL-CONTRIB-2021-038 is a cross-site scripting vulnerability in drupal/tb_megamenu, published on 22 Sep 2021. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

This module provides an admin interface for creating drop down menus that combine Drupal menu items with rich media content.

The module does not sanitize values for CSS properties that are added by admins and rendered on the front-end, allowing attackers to inject malicious code into the front-end markup.

This vulnerability is mitigated by the fact that it can only be exploited by an attacker with permissions to administer TB Mega Menu, or a sophisticated anonymous user using a site-specific attack that exploits the Cross Site Request Forgery vulnerability that is fixed by this same release.

## Which versions are affected by DRUPAL-CONTRIB-2021-038?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `drupal/tb_megamenu` | Packagist:https://packages.drupal.org/8 | All versions | 1.4.0 |

## How do I fix DRUPAL-CONTRIB-2021-038?

Apply the vendor's patch.

## Is DRUPAL-CONTRIB-2021-038 being exploited?

There is no known exploitation of DRUPAL-CONTRIB-2021-038 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for DRUPAL-CONTRIB-2021-038 and fix it if it is affected.

What it is: DRUPAL-CONTRIB-2021-038 is a cross-site scripting vulnerability in drupal/tb_megamenu, published on 22 Sep 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of DRUPAL-CONTRIB-2021-038 in the wild and no public exploit code.

Affected product: drupal/tb_megamenu. No package-level version data is available, so check the vendor advisory linked from the reference page.

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/DRUPAL-CONTRIB-2021-038/ (Markdown: https://insights.sbomify.com/DRUPAL-CONTRIB-2021-038/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/DRUPAL-CONTRIB-2021-038

---
From sbomify Insights: https://insights.sbomify.com/DRUPAL-CONTRIB-2021-038/
Summaries are generated and may contain mistakes; the official description above is the record.