# CVE-2025-20279: Cisco Unifed Contact Center Express Stored Cross-Site Scripting Vulnerability

> An authenticated attacker with admin credentials can inject malicious scripts into the Cisco Unified CCX web interface, potentially compromising other users.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 4 Jun 2025
- **Updated:** 4 Jun 2025
- **Also known as:** GHSA-w882-p9f5-q733

## What is CVE-2025-20279?

CVE-2025-20279 is a medium-severity cross-site scripting vulnerability in Cisco Unified Contact Center Express, published on 4 Jun 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

A vulnerability in the web-based management interface of Cisco Unified CCX could allow an authenticated, remote attacker to conduct a stored XSS attack on an affected system. To exploit this vulnerability, the attacker must have valid administrative credentials.

This vulnerability is due to improper sanitization of user input to the web-based management interface. An attacker could exploit this vulnerability by submitting a malicious script through the interface. A successful exploit could allow the attacker to conduct a stored XSS attack on the affected system.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2025-20279?

It affects 1 product.


Products: Cisco Unified Contact Center Express.

## How do I fix CVE-2025-20279?

No fix has been published for CVE-2025-20279 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-20279 being exploited?

There is no known exploitation of CVE-2025-20279 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-2025-20279 and fix it if it is affected.

What it is: CVE-2025-20279 is a medium-severity cross-site scripting vulnerability in Cisco Unified Contact Center Express, published on 4 Jun 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-20279 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-2025-20279/ (Markdown: https://insights.sbomify.com/CVE-2025-20279/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-20279
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-20279
- OSV: https://osv.dev/vulnerability/CVE-2025-20279

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-20279/
Summaries are generated and may contain mistakes; the official description above is the record.