# CVE-2021-1254: Cisco Finesse Cross-Site Scripting Vulnerabilities

> Authenticated attackers can inject malicious scripts into Cisco Finesse, allowing arbitrary code execution or data theft in the victim's browser.

- **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:** 22 May 2021
- **Updated:** 8 Nov 2024
- **Also known as:** GHSA-h767-w58v-w95j

## What is CVE-2021-1254?

CVE-2021-1254 is a medium-severity cross-site scripting vulnerability in Cisco Unified Contact Center Express, published on 22 May 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Multiple vulnerabilities in the web-based management interface of Cisco Finesse could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the web-based management interface of the affected software. An attacker could exploit these vulnerabilities by injecting malicious code into the web-based management interface and persuading a user to click a malicious link. 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. An attacker needs valid administrator credentials to inject the malicious script code.

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

## Which versions are affected by CVE-2021-1254?

It affects 1 product.


Products: Cisco Finesse.

## How do I fix CVE-2021-1254?

No fix has been published for CVE-2021-1254 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-1254 being exploited?

There is no known exploitation of CVE-2021-1254 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Unified Contact Center Express

- [CVE-2018-0398](https://insights.sbomify.com/CVE-2018-0398/): Server-side request forgery in Cisco Finesse unknown (critical 9.8)
- [CVE-2018-0399](https://insights.sbomify.com/CVE-2018-0399/): Information disclosure in Cisco Finesse unknown (critical 9.8)
- [CVE-2016-6442](https://insights.sbomify.com/CVE-2016-6442/): Cross-site request forgery in Cisco Finesse 11.0(1) (high 8.8)
- [CVE-2016-1373](https://insights.sbomify.com/CVE-2016-1373/): Server-side request forgery in n/a (high 8.6)
- [CVE-2015-0754](https://insights.sbomify.com/CVE-2015-0754/): Denial of service in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-1254 and fix it if it is affected.

What it is: CVE-2021-1254 is a medium-severity cross-site scripting vulnerability in Cisco Unified Contact Center Express, published on 22 May 2021. 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-2021-1254 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-2021-1254/ (Markdown: https://insights.sbomify.com/CVE-2021-1254/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-1254
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-1254
- OSV: https://osv.dev/vulnerability/CVE-2021-1254

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-1254/
Summaries are generated and may contain mistakes; the official description above is the record.