# CVE-2023-20232: Open redirect in Cisco Unified Contact Center Express

> Unauthenticated attackers can redirect users to malicious hosts via crafted HTTP requests, enabling web cache poisoning attacks on Cisco Unified CCX.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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:** 16 Aug 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-38hg-9xjj-pc2r

## What is CVE-2023-20232?

CVE-2023-20232 is a medium-severity vulnerability in Cisco Unified Contact Center Express, published on 16 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in the Tomcat implementation for Cisco Unified Contact Center Express (Unified CCX) could allow an unauthenticated, remote attacker to cause a web cache poisoning attack on an affected device. 

 This vulnerability is due to improper input validation of HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to a specific API endpoint on the Unified CCX Finesse Portal. A successful exploit could allow the attacker to cause the internal WebProxy to redirect users to an attacker-controlled host.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2023-20232?

It affects 1 product.


Products: Cisco Unified Contact Center Express.

## How do I fix CVE-2023-20232?

No fix has been published for CVE-2023-20232 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-20232 being exploited?

There is no known exploitation of CVE-2023-20232 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Unified Contact Center Express

- [CVE-2025-20354](https://insights.sbomify.com/CVE-2025-20354/): Cisco Unified Contact Center Express Remote Code Execution Vulnerability (critical 9.8)
- [CVE-2020-3280](https://insights.sbomify.com/CVE-2020-3280/): Cisco Unified Contact Center Express Remote Code Execution Vulnerability (critical 9.8)
- [CVE-2018-0403](https://insights.sbomify.com/CVE-2018-0403/): Information disclosure in Cisco Unified Contact Center Express unknown (critical 9.8)
- [CVE-2022-20658](https://insights.sbomify.com/CVE-2022-20658/): Privilege escalation in Cisco Unified Contact Center Domain Manager (critical 9.6)
- [CVE-2025-20358](https://insights.sbomify.com/CVE-2025-20358/): Cisco Unified Contact Center Express Editor Authentication Bypass Vulnerability (critical 9.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-20232 and fix it if it is affected.

What it is: CVE-2023-20232 is a medium-severity vulnerability in Cisco Unified Contact Center Express, published on 16 Aug 2023. 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-2023-20232 in the wild and no public exploit code.

Affected product: Cisco Unified Contact Center Express. 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-2023-20232/ (Markdown: https://insights.sbomify.com/CVE-2023-20232/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-20232
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-20232
- OSV: https://osv.dev/vulnerability/CVE-2023-20232

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-20232/
Summaries are generated and may contain mistakes; the official description above is the record.