# CVE-2019-9889: Path traversal in n/a

> An attacker can exploit a directory traversal flaw in Vanilla to include arbitrary files and execute code on the web server.

- **Severity:** Low 2.7 (`CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Mar 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-v6p8-wpfj-2gpr

## What is CVE-2019-9889?

CVE-2019-9889 is a low-severity path traversal vulnerability in n/a, published on 20 Mar 2019. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

In Vanilla before 2.6.4, a flaw exists within the getSingleIndex function of the AddonManager class. The issue results in a require call using a crafted type value, leading to Directory Traversal with File Inclusion. An attacker can leverage this vulnerability to execute code under the context of the web server.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2019-9889?

It affects 1 product.


Products: Vanillaforums Vanilla.

## How do I fix CVE-2019-9889?

No fix has been published for CVE-2019-9889 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-9889 being exploited?

There is no known exploitation of CVE-2019-9889 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2011-3614](https://insights.sbomify.com/CVE-2011-3614/): Missing authorization in Vanilla Forums (critical 9.8)
- [CVE-2018-18903](https://insights.sbomify.com/CVE-2018-18903/): Code injection in n/a (critical 9.8)
- [CVE-2011-3613](https://insights.sbomify.com/CVE-2011-3613/): Information disclosure in Vanilla Forums (high 7.5)
- [CVE-2016-10073](https://insights.sbomify.com/CVE-2016-10073/): Information disclosure in n/a (high 7.5)
- [CVE-2013-3527](https://insights.sbomify.com/CVE-2013-3527/): SQL injection in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-9889 and fix it if it is affected.

What it is: CVE-2019-9889 is a low-severity path traversal vulnerability in n/a, published on 20 Mar 2019. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-9889 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-2019-9889/ (Markdown: https://insights.sbomify.com/CVE-2019-9889/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-9889
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-9889
- OSV: https://osv.dev/vulnerability/CVE-2019-9889

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-9889/
Summaries are generated and may contain mistakes; the official description above is the record.