# CVE-2023-0214: XSS in Skyhigh Security SWG

> Remote attackers can inject arbitrary content into responses via crafted internal requests, affecting Skyhigh Secure Web Gateway users.

- **Severity:** Medium 6.1 (`CVSS:3.1/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:** 18 Jan 2023
- **Updated:** 3 Apr 2025
- **Also known as:** GHSA-fwv5-6pxv-2xm7

## What is CVE-2023-0214?

CVE-2023-0214 is a medium-severity cross-site scripting vulnerability in Skyhigh Security Secure Web Gateway (SWG), published on 18 Jan 2023. 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

A cross-site scripting vulnerability in Skyhigh SWG in main releases 11.x prior to 11.2.6, 10.x prior to 10.2.17, and controlled release 12.x prior to 12.0.1 allows a remote attacker to craft SWG-specific internal requests with URL paths to any third-party website, causing arbitrary content to be injected into the response when accessed through SWG.

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

## Which versions are affected by CVE-2023-0214?

It affects 1 product.


Products: Trellix Skyhigh Secure Web Gateway.

## How do I fix CVE-2023-0214?

No fix has been published for CVE-2023-0214 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-0214 being exploited?

There is no known exploitation of CVE-2023-0214 in the wild and no public exploit code.

Public exploit code:

- Secure Web Gateway 10.2.11 - Cross-Site Scripting (XSS) (exploitdb)
- Secure Web Gateway 10.2.11 - Cross-Site Scripting (XSS) (github_poc): https://github.com/0pts/CVE-2023-0214

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-0214 and fix it if it is affected.

What it is: CVE-2023-0214 is a medium-severity cross-site scripting vulnerability in Skyhigh Security Secure Web Gateway (SWG), published on 18 Jan 2023. 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-2023-0214 in the wild and no public exploit code.

Affected product: Skyhigh Security Secure Web Gateway (SWG). 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-2023-0214/ (Markdown: https://insights.sbomify.com/CVE-2023-0214/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-0214
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-0214
- OSV: https://osv.dev/vulnerability/CVE-2023-0214

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-0214/
Summaries are generated and may contain mistakes; the official description above is the record.