# CVE-2002-1846: Auth bypass in n/a

> Attackers can hijack user accounts by stealing cookies and bypassing password verification during profile updates in YaBB.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:P/A:N`)
- **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:** 28 Jun 2005
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-rp5q-5rp7-fg23

## What is CVE-2002-1846?

CVE-2002-1846 is a medium-severity authentication bypass vulnerability in n/a, published on 28 Jun 2005. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Yet Another Bulletin Board (YaBB) 1.40 and 1.41 does not require a user to submit the correct password before changing it to a new password, which allows remote attackers to modify passwords by stealing the cookie of another user, modifying the expiretime setting, and submitting the change in a profile2 action to index.php.

## Which versions are affected by CVE-2002-1846?

It affects 1 product.


Products: Yabb Yabb.

## How do I fix CVE-2002-1846?

No fix has been published for CVE-2002-1846 yet. Limit exposure of the affected software until one is available.

## Is CVE-2002-1846 being exploited?

There is no known exploitation of CVE-2002-1846 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2007-3208](https://insights.sbomify.com/CVE-2007-3208/): Other in n/a (critical 10.0)
- [CVE-2004-2403](https://insights.sbomify.com/CVE-2004-2403/): Cross-site request forgery in n/a (critical 10.0)
- [CVE-2004-0343](https://insights.sbomify.com/CVE-2004-0343/): SQL injection in n/a (critical 10.0)
- [CVE-2013-2057](https://insights.sbomify.com/CVE-2013-2057/): Path traversal in YaBB (critical 9.8)
- [CVE-2006-3275](https://insights.sbomify.com/CVE-2006-3275/): SQL injection in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2002-1846 and fix it if it is affected.

What it is: CVE-2002-1846 is a medium-severity authentication bypass vulnerability in n/a, published on 28 Jun 2005. 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-2002-1846 in the wild and no public exploit code.

Affected product: n/a. 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-2002-1846/ (Markdown: https://insights.sbomify.com/CVE-2002-1846/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2002-1846
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2002-1846
- OSV: https://osv.dev/vulnerability/CVE-2002-1846

---
From sbomify Insights: https://insights.sbomify.com/CVE-2002-1846/
Summaries are generated and may contain mistakes; the official description above is the record.