# GHSA-j66p-fvp2-fxhj: Drupal core Arbitrary PHP code execution

> Arbitrary PHP code execution in Drupal core via PEAR Archive_Tar when processing uploaded archive files.

- **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:** 15 May 2024

## What is GHSA-j66p-fvp2-fxhj?

GHSA-j66p-fvp2-fxhj is an unsafe deserialization vulnerability in drupal/drupal, published on 15 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Drupal project uses the PEAR Archive_Tar library. The PEAR Archive_Tar library has released a security update that impacts Drupal. For more information please see:
CVE-2020-28948
CVE-2020-28949

Multiple vulnerabilities are possible if Drupal is configured to allow .tar, .tar.gz, .bz2, or .tlz file uploads and processes them.

To mitigate this issue, prevent untrusted users from uploading .tar, .tar.gz, .bz2, or .tlz files.

## Which versions are affected by GHSA-j66p-fvp2-fxhj?

8 open source packages ship an affected version, including drupal/drupal.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `drupal/drupal` | Packagist | From 7.0.0 | 7.75 |
| `drupal/drupal` | Packagist | From 7.0.0 | 7.75 |
| `drupal/drupal` | Packagist | From 8.0.0 | 8.8.12 |
| `drupal/drupal` | Packagist | From 8.0.0 | 8.8.12 |
| `drupal/drupal` | Packagist | From 8.9.0 | 8.9.10 |
| `drupal/drupal` | Packagist | From 8.9.0 | 8.9.10 |
| `drupal/drupal` | Packagist | From 9.0.0 | 9.0.9 |
| `drupal/drupal` | Packagist | From 9.0.0 | 9.0.9 |

## How do I fix GHSA-j66p-fvp2-fxhj?

Upgrade drupal/drupal to a fixed version for your release line: 7.75, 8.8.12, 8.9.10 or 9.0.9.

## Is GHSA-j66p-fvp2-fxhj being exploited?

There is no known exploitation of GHSA-j66p-fvp2-fxhj in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GHSA-j66p-fvp2-fxhj and fix it if it is affected.

What it is: GHSA-j66p-fvp2-fxhj is an unsafe deserialization vulnerability in drupal/drupal, published on 15 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of GHSA-j66p-fvp2-fxhj in the wild and no public exploit code.

Affected packages and fixed versions:
- drupal/drupal (Packagist): affected from 7.0.0; fixed in 7.75
- drupal/drupal (Packagist): affected from 7.0.0; fixed in 7.75
- drupal/drupal (Packagist): affected from 8.0.0; fixed in 8.8.12
- drupal/drupal (Packagist): affected from 8.0.0; fixed in 8.8.12
- drupal/drupal (Packagist): affected from 8.9.0; fixed in 8.9.10
- drupal/drupal (Packagist): affected from 8.9.0; fixed in 8.9.10
- drupal/drupal (Packagist): affected from 9.0.0; fixed in 9.0.9
- drupal/drupal (Packagist): affected from 9.0.0; fixed in 9.0.9

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-j66p-fvp2-fxhj/ (Markdown: https://insights.sbomify.com/GHSA-j66p-fvp2-fxhj/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GHSA-j66p-fvp2-fxhj

---
From sbomify Insights: https://insights.sbomify.com/GHSA-j66p-fvp2-fxhj/
Summaries are generated and may contain mistakes; the official description above is the record.