# DRUPAL-CONTRIB-2023-035: This module changes your forum administration page to allow you to set forums private.

> Privileged attackers can achieve remote code execution via unsafe object injection in the Drupal Forum Access 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:** 23 Aug 2023

## What is DRUPAL-CONTRIB-2023-035?

DRUPAL-CONTRIB-2023-035 is an unsafe deserialization vulnerability in drupal/forum_access, published on 23 Aug 2023. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

This module changes your forum administration page to allow you to set forums private. You can control what user roles can view, edit, delete, and post to each forum. You can also give each forum a list of users who have administrative access on that forum (AKA moderators). This module requires the ACL module.

The module processes user input in a way that could be unsafe. This can lead to Remote Code Execution via Object Injection.

This vulnerability is mitigated by the fact that an attacker needs the "administer forums" permission.

This Security Advisory is being released in coordination with [SA-CONTRIB-2023-034](https://www.drupal.org/sa-contrib-2023-034) for the ACL module, on which Forum Access depends.

## Which versions are affected by DRUPAL-CONTRIB-2023-035?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `drupal/forum_access` | Packagist:https://packages.drupal.org/8 | All versions | 1.0.0 |

## How do I fix DRUPAL-CONTRIB-2023-035?

Upgrade to a fixed version.

## Is DRUPAL-CONTRIB-2023-035 being exploited?

There is no known exploitation of DRUPAL-CONTRIB-2023-035 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for DRUPAL-CONTRIB-2023-035 and fix it if it is affected.

What it is: DRUPAL-CONTRIB-2023-035 is an unsafe deserialization vulnerability in drupal/forum_access, published on 23 Aug 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of DRUPAL-CONTRIB-2023-035 in the wild and no public exploit code.

Affected product: drupal/forum_access. 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-2023-035/ (Markdown: https://insights.sbomify.com/DRUPAL-CONTRIB-2023-035/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/DRUPAL-CONTRIB-2023-035

---
From sbomify Insights: https://insights.sbomify.com/DRUPAL-CONTRIB-2023-035/
Summaries are generated and may contain mistakes; the official description above is the record.