---
title: "TYPO3-EXT-SA-2016-005: Cross-Site Scripting in extension \"Extension Kickstarter\" (kickstarter)"
url: "https://news.typo3.com/security/advisory/typo3-ext-sa-2016-005"
description: "It has been discovered that the extension \"Extension Kickstarter\" (kickstarter) 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:
  - TYPO3 Extensions
---

# TYPO3-EXT-SA-2016-005: Cross-Site Scripting in extension "Extension Kickstarter" (kickstarter)

- Security / [TYPO3 Extensions](https://news.typo3.com/article/category/security/typo3-extensions)

TYPO3-EXT-SA-2016-005: Cross-Site Scripting in extension "Extension Kickstarter" (kickstarter)
==============================================================================================

03 March 2016

![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 "Extension Kickstarter" (kickstarter) is susceptible to Cross-Site Scripting.

- ![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/bbf959d8e683550c90ae922aff9145d8.jpeg)[Marcus Krause](https://news.typo3.com/article/author/marcus-krause)

**Release Date:** March 03, 2016

**Component Type:** Third party extension. This extension is not a part of the TYPO3 default installation.

**Affected Versions:** version 0.5.3 and below

**Vulnerability Type:** Cross-Site Scripting

**Severity:** Low

**Suggested CVSS v2.0:** [AV:N/AC:M/Au:S/C:N/I:N/A:N/E:F/RL:U/RC:C](http://jvnrss.ise.chuo-u.ac.jp/jtg/cvss/cvss2.cgi?vector=%28AV:N/AC:M/Au:S/C:N/I:N/A:N/E:F/RL:U/RC:C%29&g=2&lang=en "CVSS calculator") ([What's that?](http://buzz.typo3.org/teams/security/article/use-of-common-vulnerability-scoring-system-in-typo3-security-advisories/ "Blog post on CVSS usage"))

**Problem Description:** The extension fails to properly encode extension information in its edit mask. An admin backend user is needed to exploit the vulnerability.

**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 The extension is no longer maintained and the author will not provide a security fix for the reported vulnerability. Please uninstall and delete the extension from your installation.

**Credits**: Credits go to Oliver Klee who discovered and reported the vulnerability.

**General advice:** Follow the recommendations that are given in the [TYPO3 Security Guide](http://docs.typo3.org/typo3cms/SecurityGuide/ "Initiates file download"). Please subscribe to the [typo3-announce mailing list](http://lists.typo3.org/cgi-bin/mailman/listinfo/typo3-announce "Opens external link in new window") to receive future Security Bulletins via E-mail.

![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/b5c88386e5b1d8fca79d0652427922d2.jpeg)

About the Author

[Marcus Krause](https://news.typo3.com/article/author/marcus-krause)

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