# DRUPAL-CONTRIB-2023-014: S3 File System (s3fs) provides an additional file system to your Drupal site, which stores files in Amazon's Simple Storage Service (S3) or

> An attacker with low privileges can move inaccessible files to S3 storage if another vulnerability exists, potentially exposing or modifying data.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 3 May 2023

## What is DRUPAL-CONTRIB-2023-014?

DRUPAL-CONTRIB-2023-014 is a missing authorization vulnerability in drupal/s3fs, published on 3 May 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

S3 File System (s3fs) provides an additional file system to your Drupal site, which stores files in Amazon's Simple Storage Service (S3) or any other S3-compatible storage service.

This module may fail to validate that a file being requested to be moved to storage was uploaded during the same web request, possibly allowing an attacker to move files that should normally be inaccessible to them.

This vulnerability is mitigated by the fact that another vulnerability must already exist outside of s3fs.

## Which versions are affected by DRUPAL-CONTRIB-2023-014?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `drupal/s3fs` | Packagist:https://packages.drupal.org/8 | All versions | 3.2.0 |

## How do I fix DRUPAL-CONTRIB-2023-014?

Apply the vendor's patch.

## Is DRUPAL-CONTRIB-2023-014 being exploited?

There is no known exploitation of DRUPAL-CONTRIB-2023-014 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for DRUPAL-CONTRIB-2023-014 and fix it if it is affected.

What it is: DRUPAL-CONTRIB-2023-014 is a missing authorization vulnerability in drupal/s3fs, published on 3 May 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of DRUPAL-CONTRIB-2023-014 in the wild and no public exploit code.

Affected product: drupal/s3fs. 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-2023-014/ (Markdown: https://insights.sbomify.com/DRUPAL-CONTRIB-2023-014/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/DRUPAL-CONTRIB-2023-014

---
From sbomify Insights: https://insights.sbomify.com/DRUPAL-CONTRIB-2023-014/
Summaries are generated and may contain mistakes; the official description above is the record.