# CVE-2018-7763: Path traversal in U.Motion

> An attacker can exploit a directory traversal vulnerability in the css parameter to read arbitrary files from the system.

- **Severity:** Medium 4.3 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 3 Jul 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-vrfg-f44j-g5c7

## What is CVE-2018-7763?

CVE-2018-7763 is a medium-severity path traversal vulnerability in Schneider Electric SE U.Motion, published on 3 Jul 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The vulnerability exists within css.inc.php in Schneider Electric U.motion Builder software versions prior to v1.3.4. The 'css' parameter contains a directory traversal vulnerability.

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

## Which versions are affected by CVE-2018-7763?

It affects 1 product.


Products: Schneider-Electric U.motion Builder.

## How do I fix CVE-2018-7763?

No fix has been published for CVE-2018-7763 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-7763 being exploited?

There is no known exploitation of CVE-2018-7763 in the wild and no public exploit code.

## Other vulnerabilities in Schneider Electric SE U.Motion

- [CVE-2018-7841](https://insights.sbomify.com/CVE-2018-7841/): Schneider Electric U.motion Builder SQL Injection (critical 9.8, exploited in the wild)
- [CVE-2018-7785](https://insights.sbomify.com/CVE-2018-7785/): Command injection in U.motion Builder (critical 9.8)
- [CVE-2017-7973](https://insights.sbomify.com/CVE-2017-7973/): SQL injection in U.Motion (critical 9.8)
- [CVE-2017-7974](https://insights.sbomify.com/CVE-2017-7974/): Path traversal in U.Motion (critical 9.8)
- [CVE-2017-9957](https://insights.sbomify.com/CVE-2017-9957/): Hardcoded credentials in U.Motion (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-7763 and fix it if it is affected.

What it is: CVE-2018-7763 is a medium-severity path traversal vulnerability in Schneider Electric SE U.Motion, published on 3 Jul 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-7763 in the wild and no public exploit code.

Affected product: Schneider Electric SE U.Motion. 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-2018-7763/ (Markdown: https://insights.sbomify.com/CVE-2018-7763/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-7763
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-7763
- OSV: https://osv.dev/vulnerability/CVE-2018-7763

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-7763/
Summaries are generated and may contain mistakes; the official description above is the record.