# CVE-2002-1537: Missing authorization in n/a

> Local users can gain administrator privileges by directly calling admin_ug_auth.php with modified form fields, bypassing authorization checks.

- **Severity:** Critical 10.0 (`AV:N/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Sep 2004
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-cgp4-wfr7-8prp

## What is CVE-2002-1537?

CVE-2002-1537 is a critical missing authorization vulnerability in Phpbb Group Phpbb, published on 1 Sep 2004. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

admin_ug_auth.php in phpBB 2.0.0 allows local users to gain administrator privileges by directly calling admin_ug_auth.php with modifed form fields such as "u".

## Which versions are affected by CVE-2002-1537?

It affects 1 product.


Products: Phpbb Group Phpbb.

## How do I fix CVE-2002-1537?

No fix has been published for CVE-2002-1537 yet. Limit exposure of the affected software until one is available.

## Is CVE-2002-1537 being exploited?

There is no known exploitation of CVE-2002-1537 in the wild and no public exploit code.

## Other vulnerabilities in Phpbb Group Phpbb

- [CVE-2007-1695](https://insights.sbomify.com/CVE-2007-1695/): File upload in n/a (critical 10.0)
- [CVE-2006-6839](https://insights.sbomify.com/CVE-2006-6839/): Open redirect in n/a (critical 10.0)
- [CVE-2006-6840](https://insights.sbomify.com/CVE-2006-6840/): Other in n/a (critical 10.0)
- [CVE-2006-6841](https://insights.sbomify.com/CVE-2006-6841/): Cross-site request forgery in n/a (critical 10.0)
- [CVE-2002-2176](https://insights.sbomify.com/CVE-2002-2176/): SQL injection in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2002-1537 and fix it if it is affected.

What it is: CVE-2002-1537 is a critical missing authorization vulnerability in Phpbb Group Phpbb, published on 1 Sep 2004. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2002-1537 in the wild and no public exploit code.

Affected product: Phpbb Group Phpbb. 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-2002-1537/ (Markdown: https://insights.sbomify.com/CVE-2002-1537/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2002-1537
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2002-1537
- OSV: https://osv.dev/vulnerability/CVE-2002-1537

---
From sbomify Insights: https://insights.sbomify.com/CVE-2002-1537/
Summaries are generated and may contain mistakes; the official description above is the record.