# CVE-2024-20540: Cisco Unified Contact Center Management Portal Stored Cross-Site Scripting Vulnerability

> Authenticated attackers with Supervisor privileges can inject malicious scripts into the Cisco Unified CCMP interface, potentially executing code or stealing data.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 6 Nov 2024
- **Updated:** 6 Nov 2024
- **Also known as:** GHSA-r6pw-ffg9-984j

## What is CVE-2024-20540?

CVE-2024-20540 is a medium-severity cross-site scripting vulnerability in Cisco Unified Contact Center Management Portal, published on 6 Nov 2024. Any signed-in user can exploit it over the network, 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 Contact Center Management Portal (Unified CCMP) could allow an authenticated, remote attacker with low privileges to conduct a stored cross-site scripting (XSS) attack against a user of the interface.

This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by injecting malicious code into a specific page of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive browser-based information. To exploit this vulnerability, the attacker must have at least a Supervisor role on an affected device.

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

## Which versions are affected by CVE-2024-20540?

It affects 1 product.


Products: Cisco Unified Contact Center Management Portal.

## How do I fix CVE-2024-20540?

No fix has been published for CVE-2024-20540 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-20540 being exploited?

There is no known exploitation of CVE-2024-20540 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Unified Contact Center Management Portal

- [CVE-2024-20512](https://insights.sbomify.com/CVE-2024-20512/): Cisco Unified Contact Center Management Portal Reflected Cross-Site Scripting Vulnerability (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-20540 and fix it if it is affected.

What it is: CVE-2024-20540 is a medium-severity cross-site scripting vulnerability in Cisco Unified Contact Center Management Portal, published on 6 Nov 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2024-20540 in the wild and no public exploit code.

Affected product: Cisco Unified Contact Center Management Portal. 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-2024-20540/ (Markdown: https://insights.sbomify.com/CVE-2024-20540/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-20540
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-20540
- OSV: https://osv.dev/vulnerability/CVE-2024-20540

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-20540/
Summaries are generated and may contain mistakes; the official description above is the record.