# CVE-2015-6660: Cross-site request forgery in n/a

> Remote attackers can exploit a CSRF vulnerability in Drupal's Form API to upload files to another user's account, requiring victim interaction.

- **Severity:** Medium 6.8 (`AV:N/AC:M/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 24 Aug 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-vfw4-2ffw-69gw, UBUNTU-CVE-2015-6660

## What is CVE-2015-6660?

CVE-2015-6660 is a medium-severity vulnerability in Drupal Drupal, published on 24 Aug 2015. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

The Form API in Drupal 6.x before 6.37 and 7.x before 7.39 does not properly validate the form token, which allows remote attackers to conduct CSRF attacks that upload files in a different user's account via vectors related to "file upload value callbacks."

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2015-6660?

It affects 1 product.


Products: Drupal Drupal.

## How do I fix CVE-2015-6660?

Upgrade to a fixed version.

## Is CVE-2015-6660 being exploited?

There is no known exploitation of CVE-2015-6660 in the wild and no public exploit code.

## Other vulnerabilities in Drupal Drupal

- [CVE-2026-9082](https://insights.sbomify.com/CVE-2026-9082/): Drupal Core SQL Injection (critical 9.8, exploited in the wild)
- [CVE-2020-13671](https://insights.sbomify.com/CVE-2020-13671/): Drupal core Un-restricted Upload of File (high 8.8, exploited in the wild)
- [CVE-2019-6340](https://insights.sbomify.com/CVE-2019-6340/): Drupal Core Remote Code Execution (high 8.1, exploited in the wild)
- [CVE-2009-3352](https://insights.sbomify.com/CVE-2009-3352/): Other in n/a (critical 10.0)
- [CVE-2024-55636](https://insights.sbomify.com/CVE-2024-55636/): Drupal core - Less critical - Gadget chain - SA-CORE-2024-006 (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-6660 and fix it if it is affected.

What it is: CVE-2015-6660 is a medium-severity vulnerability in Drupal Drupal, published on 24 Aug 2015. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2015-6660 in the wild and no public exploit code.

Affected product: Drupal Drupal. 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/CVE-2015-6660/ (Markdown: https://insights.sbomify.com/CVE-2015-6660/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-6660
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-6660
- OSV: https://osv.dev/vulnerability/CVE-2015-6660

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-6660/
Summaries are generated and may contain mistakes; the official description above is the record.