# CVE-2023-50704: URL Redirection to Untrusted Site ('Open Redirect') in EFACEC UC 500E

> Attackers can redirect users to malicious sites via crafted URLs, facilitating phishing attacks against EFACEC UC 500E users.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Dec 2023
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-q8j8-xqjx-685x

## What is CVE-2023-50704?

CVE-2023-50704 is a medium-severity vulnerability in EFACEC UC 500E, published on 19 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An attacker could construct a URL within the application that causes a redirection to an arbitrary external domain and could be leveraged to facilitate phishing attacks against application users.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2023-50704?

It affects 1 product.


Products: Efacec Uc 500e Firmware.

## How do I fix CVE-2023-50704?

No fix has been published for CVE-2023-50704 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-50704 being exploited?

There is no known exploitation of CVE-2023-50704 in the wild and no public exploit code.

## Other vulnerabilities in EFACEC UC 500E

- [CVE-2023-50703](https://insights.sbomify.com/CVE-2023-50703/): Cleartext Transmission of Sensitive Information in EFACEC UC 500E (medium 6.3)
- [CVE-2023-50705](https://insights.sbomify.com/CVE-2023-50705/): Exposure of Sensitive Information to an Unauthorized Actor in EFACEC UC 500E (medium 5.3)
- [CVE-2023-50706](https://insights.sbomify.com/CVE-2023-50706/): Improper Access Control in EFACEC UC 500E (medium 4.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-50704 and fix it if it is affected.

What it is: CVE-2023-50704 is a medium-severity vulnerability in EFACEC UC 500E, published on 19 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-50704 in the wild and no public exploit code.

Affected product: EFACEC UC 500E. 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-2023-50704/ (Markdown: https://insights.sbomify.com/CVE-2023-50704/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-50704
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-50704
- OSV: https://osv.dev/vulnerability/CVE-2023-50704

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-50704/
Summaries are generated and may contain mistakes; the official description above is the record.