# CVE-2002-0809: Missing authorization in n/a

> Attackers can bypass group permissions on bugs by exploiting URL-encoded field names, potentially accessing restricted data.

- **Severity:** High 7.5 (`AV:N/AC:L/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:** No
- **Published:** 2 Apr 2003
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-5579-734j-m88m

## What is CVE-2002-0809?

CVE-2002-0809 is a high-severity missing authorization vulnerability in Mozilla Bugzilla, published on 2 Apr 2003. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Bugzilla 2.14 before 2.14.2, and 2.16 before 2.16rc2, does not properly handle URL-encoded field names that are generated by some browsers, which could cause certain fields to appear to be unset, which has the effect of removing group permissions on bugs when buglist.cgi is provided with the encoded field names.

## Which versions are affected by CVE-2002-0809?

It affects 1 product.


Products: Mozilla Bugzilla.

## How do I fix CVE-2002-0809?

No fix has been published for CVE-2002-0809 yet. Limit exposure of the affected software until one is available.

## Is CVE-2002-0809 being exploited?

There is no known exploitation of CVE-2002-0809 in the wild and no public exploit code.

## Other vulnerabilities in Mozilla Bugzilla

- [CVE-2004-0769](https://insights.sbomify.com/CVE-2004-0769/): Memory corruption in n/a (critical 10.0)
- [CVE-2003-1042](https://insights.sbomify.com/CVE-2003-1042/): SQL injection in n/a (critical 10.0)
- [CVE-2003-1043](https://insights.sbomify.com/CVE-2003-1043/): SQL injection in n/a (critical 10.0)
- [CVE-2002-0007](https://insights.sbomify.com/CVE-2002-0007/): Auth bypass in n/a (critical 10.0)
- [CVE-2018-5123](https://insights.sbomify.com/CVE-2018-5123/): Cross-site request forgery in Bugzilla (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2002-0809 and fix it if it is affected.

What it is: CVE-2002-0809 is a high-severity missing authorization vulnerability in Mozilla Bugzilla, published on 2 Apr 2003. 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-2002-0809 in the wild and no public exploit code.

Affected product: Mozilla Bugzilla. 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-2002-0809/ (Markdown: https://insights.sbomify.com/CVE-2002-0809/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2002-0809
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2002-0809
- OSV: https://osv.dev/vulnerability/CVE-2002-0809

---
From sbomify Insights: https://insights.sbomify.com/CVE-2002-0809/
Summaries are generated and may contain mistakes; the official description above is the record.