# CVE-2017-6788: Cross-site scripting in AnyConnect WebLaunch

> An attacker can execute arbitrary scripts in the victim's browser via the WebLaunch feature, potentially compromising user sessions.

- **Severity:** Medium 6.1 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 17 Aug 2017
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-rg93-gvp9-mv6g

## What is CVE-2017-6788?

CVE-2017-6788 is a medium-severity cross-site scripting vulnerability in Cisco Anyconnect Secure Mobility Client, published on 17 Aug 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The WebLaunch functionality of Cisco AnyConnect Secure Mobility Client Software contains a vulnerability that could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the affected software. The vulnerability is due to insufficient input validation of some parameters that are passed to the WebLaunch function of the affected software. An attacker could exploit this vulnerability by convincing a user to access a malicious link or by intercepting a user request and injecting malicious code into the request. Cisco Bug IDs: CSCvf12055. Known Affected Releases: 98.89(40).

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

## Which versions are affected by CVE-2017-6788?

It affects 1 product.


Products: Cisco Anyconnect Secure Mobility Client.

## How do I fix CVE-2017-6788?

No fix has been published for CVE-2017-6788 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-6788 being exploited?

There is no known exploitation of CVE-2017-6788 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Anyconnect Secure Mobility Client

- [CVE-2020-3433](https://insights.sbomify.com/CVE-2020-3433/): Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking (high 7.8, exploited in the wild)
- [CVE-2020-3153](https://insights.sbomify.com/CVE-2020-3153/): Cisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path (medium 6.5, exploited in the wild)
- [CVE-2012-3088](https://insights.sbomify.com/CVE-2012-3088/): Security feature bypass in n/a (critical 9.3)
- [CVE-2012-2493](https://insights.sbomify.com/CVE-2012-2493/): Code injection in n/a (critical 9.3)
- [CVE-2011-2040](https://insights.sbomify.com/CVE-2011-2040/): Code injection in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-6788 and fix it if it is affected.

What it is: CVE-2017-6788 is a medium-severity cross-site scripting vulnerability in Cisco Anyconnect Secure Mobility Client, published on 17 Aug 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2017-6788 in the wild and no public exploit code.

Affected product: Cisco Anyconnect Secure Mobility Client. 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-2017-6788/ (Markdown: https://insights.sbomify.com/CVE-2017-6788/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-6788
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-6788
- OSV: https://osv.dev/vulnerability/CVE-2017-6788

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-6788/
Summaries are generated and may contain mistakes; the official description above is the record.