# CVE-2022-46306: ChangingTec ServiSign - Path Traversal

> An unauthenticated attacker can trick a user into visiting a malicious site to load arbitrary DLLs via path traversal, enabling code execution and service disruption.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **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 Jan 2023
- **Updated:** 10 Apr 2025
- **Also known as:** GHSA-pjx5-jjh7-w9hw

## What is CVE-2022-46306?

CVE-2022-46306 is a high-severity path traversal vulnerability in ChangingTec ServiSign, published on 3 Jan 2023. 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

ChangingTec ServiSign component has a path traversal vulnerability due to insufficient filtering for special characters in the DLL file path. An unauthenticated remote attacker can host a malicious website for the component user to access, which triggers the component to load malicious DLL files under arbitrary file path and allows the attacker to perform arbitrary system operation and disrupt of service.

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

## Which versions are affected by CVE-2022-46306?

It affects 1 product.


Products: Changingtec Servisign.

## How do I fix CVE-2022-46306?

No fix has been published for CVE-2022-46306 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-46306 being exploited?

There is no known exploitation of CVE-2022-46306 in the wild and no public exploit code.

## Other vulnerabilities in ChangingTec ServiSign

- [CVE-2022-46304](https://insights.sbomify.com/CVE-2022-46304/): ChangingTec ServiSign - Command Injection (high 8.8)
- [CVE-2020-3925](https://insights.sbomify.com/CVE-2020-3925/): ServiSign Windows Versions- Remote Code Execution via LoadLibrary (high 8.3)
- [CVE-2020-3927](https://insights.sbomify.com/CVE-2020-3927/): ServiSign Windows Versions- Arbitrary File Deletion (high 8.3)
- [CVE-2022-46305](https://insights.sbomify.com/CVE-2022-46305/): ChangingTec ServiSign - Path Traversal (medium 6.5)
- [CVE-2020-3926](https://insights.sbomify.com/CVE-2020-3926/): ServiSign Windows Versions- Arbitrary File Access (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-46306 and fix it if it is affected.

What it is: CVE-2022-46306 is a high-severity path traversal vulnerability in ChangingTec ServiSign, published on 3 Jan 2023. 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-2022-46306 in the wild and no public exploit code.

Affected product: ChangingTec ServiSign. 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-2022-46306/ (Markdown: https://insights.sbomify.com/CVE-2022-46306/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-46306
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-46306
- OSV: https://osv.dev/vulnerability/CVE-2022-46306

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-46306/
Summaries are generated and may contain mistakes; the official description above is the record.