---
title: "TYPO3-EXT-SA-2019-009: Cross Site Scripting in extension \"gkh RSS Import\" (gkh_rss_import)"
url: "https://news.typo3.com/security/advisory/typo3-ext-sa-2019-009"
description: "It has been discovered that the extension \"gkh RSS Import\" (gkh_rss_import) is susceptible to Cross Site Scripting."
image: "https://news.typo3.com/_assets/d1e01514e4c4a5b3147940fa2ec50682/Images/og-image-news.jpg"
date: 2026-06-11
modified: 2026-06-11
categories:
  - "Developer & Technology"
  - TYPO3 Extensions
---

# TYPO3-EXT-SA-2019-009: Cross Site Scripting in extension "gkh RSS Import" (gkh_rss_import)

- [Developer & Technology](https://news.typo3.com/article/category/developer-technology)
- Security / [TYPO3 Extensions](https://news.typo3.com/article/category/security/typo3-extensions)

TYPO3-EXT-SA-2019-009: Cross Site Scripting in extension "gkh RSS Import" (gkh\_rss\_import)
============================================================================================

07 May 2019

![A laptop screen displaying a list of security advisories](https://news.typo3.com/typo3temp/assets/_processed_/d/c/csm_security_blog_default_77f8e86036.webp)

It has been discovered that the extension "gkh RSS Import" (gkh\_rss\_import) is susceptible to Cross Site Scripting.

- ![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/e4eaa13e33dd086a9c06f2570cb34609.jpeg)[Torben Hansen](https://news.typo3.com/article/author/torben-hansen)

- Release Date: May 07, 2019
- Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
- Vulnerability Type: Cross Site Scripting
- Affected Versions: 5.0.0 and below
- Severity: Medium
- Suggested CVSS v3.0: [AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N](https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
- CVE: not assigned yet

### Problem Description

The extension fails to properly encode user input for output in HTML context.

### Solution

Versions of this extension that are known to be vulnerable will no longer be available for download from the TYPO3 Extension Repository. The extension author does not maintain the extension any more and will not provide a security fix for the reported vulnerability.

Please uninstall and delete the extension folder from your installation.

### Credits

Credits go to Melanie Kalka who discovered and reported the vulnerability.

### General Advice

Follow the recommendations that are given in the [TYPO3 Security Guide](https://docs.typo3.org/typo3cms/CoreApiReference/Security/Index.html#security-guidelines). Please subscribe to the [typo3-announce](http://lists.typo3.org/cgi-bin/mailman/listinfo/typo3-announce) mailing list.

![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/7cf52722a5b7183b29d378a2284bd103.jpeg)

About the Author

[Torben Hansen](https://news.typo3.com/article/author/torben-hansen)

Open Source Enthusiast & TYPO3 Expert

I’m a passionate open-source advocate and dedicated TYPO3 expert. As a freelancer, I offer professional TYPO3 services to clients while actively contributing to the TYPO3 ecosystem. I have developed several public TYPO3 extensions and serve as the Co-Lead of the TYPO3 Security Team, helping to enhance the platform’s security and functionality. For many years, I have been blogging about TYPO3, sharing insights and expertise with the community.

[More posts by this author](https://news.typo3.com/article/author/torben-hansen)