# CVE-2018-0646: Path traversal in Explzh

> An attacker can read arbitrary files on the system by exploiting a directory traversal vulnerability in the Explzh archive utility.

- **Severity:** High 7.8 (`CVSS:3.0/AV:L/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:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 4 Sep 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-5r6v-f7p5-xqv4

## What is CVE-2018-0646?

CVE-2018-0646 is a high-severity path traversal vulnerability in pon software Explzh, published on 4 Sep 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Directory traversal vulnerability in Explzh v.7.58 and earlier allows an attacker to read arbitrary files via unspecified vectors.

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

## Which versions are affected by CVE-2018-0646?

It affects 1 product.


Products: Ponsoftware Explzh.

## How do I fix CVE-2018-0646?

No fix has been published for CVE-2018-0646 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-0646 being exploited?

There is no known exploitation of CVE-2018-0646 in the wild and no public exploit code.

## Other vulnerabilities in pon software Explzh

- [CVE-2010-2434](https://insights.sbomify.com/CVE-2010-2434/): Memory corruption in n/a (critical 9.3)
- [CVE-2010-3159](https://insights.sbomify.com/CVE-2010-3159/): Path traversal in n/a (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-0646 and fix it if it is affected.

What it is: CVE-2018-0646 is a high-severity path traversal vulnerability in pon software Explzh, published on 4 Sep 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-0646 in the wild and no public exploit code.

Affected product: pon software Explzh. 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-2018-0646/ (Markdown: https://insights.sbomify.com/CVE-2018-0646/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-0646
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-0646
- OSV: https://osv.dev/vulnerability/CVE-2018-0646

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-0646/
Summaries are generated and may contain mistakes; the official description above is the record.