# CVE-2014-2120: Cisco Adaptive Security Appliance (ASA) Cross-Site Scripting (XSS)

> Remote attackers can inject arbitrary web script or HTML into the Cisco ASA WebVPN login page, potentially compromising user sessions.

- **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:** Yes, since 12 Nov 2024 (CISA KEV)
- **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:** 19 Mar 2014
- **Updated:** 22 Oct 2025
- **Also known as:** GHSA-5g9m-4pr5-x8v5

## What is CVE-2014-2120?

CVE-2014-2120 is a medium-severity cross-site scripting vulnerability in Cisco Adaptive Security Appliance Software, published on 19 Mar 2014. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Cross-site scripting (XSS) vulnerability in the WebVPN login page in Cisco Adaptive Security Appliance (ASA) Software allows remote attackers to inject arbitrary web script or HTML via an unspecified parameter, aka Bug ID CSCun19025.

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

## Which versions are affected by CVE-2014-2120?

It affects 1 product.


Products: Cisco Adaptive Security Appliance Software.

## How do I fix CVE-2014-2120?

No fix has been published for CVE-2014-2120 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 Dec 2024.

## Is CVE-2014-2120 being exploited?

Yes. Attackers have exploited CVE-2014-2120 in the wild since at least 12 Nov 2024.

## Other vulnerabilities in Cisco Adaptive Security Appliance Software

- [CVE-2025-20333](https://insights.sbomify.com/CVE-2025-20333/): Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Buffer Overflow (critical 9.9, exploited in the wild)
- [CVE-2016-6366](https://insights.sbomify.com/CVE-2016-6366/): Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow (high 8.8, exploited in the wild)
- [CVE-2026-20349](https://insights.sbomify.com/CVE-2026-20349/): Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection (high 8.6, exploited in the wild)
- [CVE-2024-20353](https://insights.sbomify.com/CVE-2024-20353/): Cisco ASA and FTD Denial of Service (high 8.6, exploited in the wild)
- [CVE-2016-6367](https://insights.sbomify.com/CVE-2016-6367/): Cisco Adaptive Security Appliance (ASA) CLI Remote Code Execution (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2014-2120 and fix it if it is affected.

What it is: CVE-2014-2120 is a medium-severity cross-site scripting vulnerability in Cisco Adaptive Security Appliance Software, published on 19 Mar 2014. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: Yes. Attackers have exploited CVE-2014-2120 in the wild since at least 12 Nov 2024.

Affected product: Cisco Adaptive Security Appliance Software. 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-2014-2120/ (Markdown: https://insights.sbomify.com/CVE-2014-2120/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-2120
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-2120
- OSV: https://osv.dev/vulnerability/CVE-2014-2120

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From sbomify Insights: https://insights.sbomify.com/CVE-2014-2120/
Summaries are generated and may contain mistakes; the official description above is the record.