# CVE-2017-6764: Cross-site scripting in Cisco Adaptive Security Appliance

> Authenticated attackers can execute arbitrary scripts or steal data via XSS in the Cisco ASA web management interface.

- **Severity:** Medium 5.4 (`CVSS:3.0/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:** 7 Aug 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-5p3f-2pxr-5xgf

## What is CVE-2017-6764?

CVE-2017-6764 is a medium-severity cross-site scripting vulnerability in Cisco Adaptive Security Appliance Software, published on 7 Aug 2017. 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 Adaptive Security Appliance (ASA) 9.5(1) could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information. Cisco Bug IDs: CSCvd82064.

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

## Which versions are affected by CVE-2017-6764?

It affects 1 product.


Products: Cisco Adaptive Security Appliance Software.

## How do I fix CVE-2017-6764?

No fix has been published for CVE-2017-6764 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-6764 being exploited?

There is no known exploitation of CVE-2017-6764 in the wild and no public exploit code.

## 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-2017-6764 and fix it if it is affected.

What it is: CVE-2017-6764 is a medium-severity cross-site scripting vulnerability in Cisco Adaptive Security Appliance Software, published on 7 Aug 2017. 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-2017-6764 in the wild and no public exploit code.

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-2017-6764/ (Markdown: https://insights.sbomify.com/CVE-2017-6764/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-6764
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-6764
- OSV: https://osv.dev/vulnerability/CVE-2017-6764

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-6764/
Summaries are generated and may contain mistakes; the official description above is the record.