# CVE-2018-9851: Path traversal in n/a

> Remote attackers can read arbitrary files in Gxlcms QY by manipulating pathname separators and directory traversal sequences in admin template requests.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Apr 2018
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-cgx7-gvx2-cmmg

## What is CVE-2018-9851?

CVE-2018-9851 is a high-severity path traversal vulnerability in n/a, published on 8 Apr 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In Gxlcms QY v1.0.0713, Lib\Lib\Action\Admin\TplAction.class.php allows remote attackers to read any file via a modified pathname in an Admin-Tpl request, as demonstrated by use of '|' instead of '/' as a directory separator, in conjunction with a ".." sequence.

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

## Which versions are affected by CVE-2018-9851?

It affects 1 product.


Products: Gxlcms Gxlcms Qy.

## How do I fix CVE-2018-9851?

No fix has been published for CVE-2018-9851 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-9851 being exploited?

There is no known exploitation of CVE-2018-9851 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2018-9852](https://insights.sbomify.com/CVE-2018-9852/): SQL injection in n/a (critical 9.8)
- [CVE-2018-9847](https://insights.sbomify.com/CVE-2018-9847/): Code injection in n/a (critical 9.8)
- [CVE-2018-9848](https://insights.sbomify.com/CVE-2018-9848/): File upload in n/a (critical 9.8)
- [CVE-2018-9247](https://insights.sbomify.com/CVE-2018-9247/): SQL injection in n/a (critical 9.8)
- [CVE-2018-9850](https://insights.sbomify.com/CVE-2018-9850/): Path traversal in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-9851 and fix it if it is affected.

What it is: CVE-2018-9851 is a high-severity path traversal vulnerability in n/a, published on 8 Apr 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-9851 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-2018-9851/ (Markdown: https://insights.sbomify.com/CVE-2018-9851/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-9851
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-9851
- OSV: https://osv.dev/vulnerability/CVE-2018-9851

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-9851/
Summaries are generated and may contain mistakes; the official description above is the record.