# DRUPAL-CONTRIB-2023-003: The Media Library Block module allows you to render a media entity in a block.

> Unauthorized users can view restricted media items due to missing access checks in the Media Library Block module.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 18 Jan 2023

## What is DRUPAL-CONTRIB-2023-003?

DRUPAL-CONTRIB-2023-003 is a missing authorization vulnerability in drupal/media_library_block, published on 18 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Media Library Block module allows you to render a media entity in a block.

The module does not properly check media access in some circumstances. This may result in unauthorized users (including anonymous users) seeing media items they are not authorized to access if a block containing a restricted media item is placed on the page.

Administrators may mitigate this vulnerability by removing blocks referencing media items that have access restrictions.

## Which versions are affected by DRUPAL-CONTRIB-2023-003?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `drupal/media_library_block` | Packagist:https://packages.drupal.org/8 | All versions | 1.0.4 |

## How do I fix DRUPAL-CONTRIB-2023-003?

Change a configuration setting.

## Is DRUPAL-CONTRIB-2023-003 being exploited?

There is no known exploitation of DRUPAL-CONTRIB-2023-003 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for DRUPAL-CONTRIB-2023-003 and fix it if it is affected.

What it is: DRUPAL-CONTRIB-2023-003 is a missing authorization vulnerability in drupal/media_library_block, published on 18 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of DRUPAL-CONTRIB-2023-003 in the wild and no public exploit code.

Affected product: drupal/media_library_block. 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-2023-003/ (Markdown: https://insights.sbomify.com/DRUPAL-CONTRIB-2023-003/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/DRUPAL-CONTRIB-2023-003

---
From sbomify Insights: https://insights.sbomify.com/DRUPAL-CONTRIB-2023-003/
Summaries are generated and may contain mistakes; the official description above is the record.