# CVE-2021-28172: Vangene deltaFlow E-platform - Path Traversal

> Remote attackers can exploit a path traversal flaw in the file download function to access sensitive credential data.

- **Severity:** High 7.5 (`CVSS:3.1/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:** 6 Apr 2021
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-jx2q-6pqj-6v8p

## What is CVE-2021-28172?

CVE-2021-28172 is a high-severity path traversal vulnerability in Vangene deltaFlow E-platform, published on 6 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

There is a Path Traversal vulnerability in the file download function of Vangene deltaFlow E-platform. Remote attackers can access credential data with this leakage.

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

## Which versions are affected by CVE-2021-28172?

It affects 1 product.


Products: Deltaflow Project Deltaflow.

## How do I fix CVE-2021-28172?

No fix has been published for CVE-2021-28172 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-28172 being exploited?

There is no known exploitation of CVE-2021-28172 in the wild and no public exploit code.

## Other vulnerabilities in Vangene deltaFlow E-platform

- [CVE-2021-28171](https://insights.sbomify.com/CVE-2021-28171/): Vangene deltaFlow E-platform - Broken Authentication (critical 9.8)
- [CVE-2021-28173](https://insights.sbomify.com/CVE-2021-28173/): Vangene deltaFlow E-platform - Arbitrary File Upload (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-28172 and fix it if it is affected.

What it is: CVE-2021-28172 is a high-severity path traversal vulnerability in Vangene deltaFlow E-platform, published on 6 Apr 2021. 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-2021-28172 in the wild and no public exploit code.

Affected product: Vangene deltaFlow E-platform. 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-2021-28172/ (Markdown: https://insights.sbomify.com/CVE-2021-28172/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-28172
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-28172
- OSV: https://osv.dev/vulnerability/CVE-2021-28172

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-28172/
Summaries are generated and may contain mistakes; the official description above is the record.