# CVE-2025-6848: code-projects Simple Forum forum1.php unrestricted upload

> Remote attackers can upload malicious files via forum1.php to execute arbitrary code on the server.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Jun 2025
- **Updated:** 30 Jun 2025
- **Also known as:** GHSA-3j5q-94qj-cf33

## What is CVE-2025-6848?

CVE-2025-6848 is a medium-severity vulnerability in code-projects Simple Forum, published on 29 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability, which was classified as critical, has been found in code-projects Simple Forum 1.0. This issue affects some unknown processing of the file /forum1.php. The manipulation of the argument File leads to unrestricted upload. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2025-6848?

It affects 1 product.


Products: Fabian Simple Forum.

## How do I fix CVE-2025-6848?

No fix has been published for CVE-2025-6848 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-6848 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6848 exists.

## Other vulnerabilities in code-projects Simple Forum

- [CVE-2025-6844](https://insights.sbomify.com/CVE-2025-6844/): code-projects Simple Forum signin.php sql injection (medium 6.9)
- [CVE-2025-6845](https://insights.sbomify.com/CVE-2025-6845/): code-projects Simple Forum register1.php sql injection (medium 6.9)
- [CVE-2025-6846](https://insights.sbomify.com/CVE-2025-6846/): code-projects Simple Forum forum_viewfile.php sql injection (medium 6.9)
- [CVE-2025-6847](https://insights.sbomify.com/CVE-2025-6847/): code-projects Simple Forum forum_edit.php sql injection (medium 5.3)
- [CVE-2025-6850](https://insights.sbomify.com/CVE-2025-6850/): code-projects Simple Forum forum1.php sql injection (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-6848 and fix it if it is affected.

What it is: CVE-2025-6848 is a medium-severity vulnerability in code-projects Simple Forum, published on 29 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6848 exists.

Affected product: code-projects Simple Forum. 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-2025-6848/ (Markdown: https://insights.sbomify.com/CVE-2025-6848/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-6848
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-6848
- OSV: https://osv.dev/vulnerability/CVE-2025-6848

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-6848/
Summaries are generated and may contain mistakes; the official description above is the record.