--- title: "TYPO3-SA-2010-009: Vulnerabilitiy in extension Frontend User Registration (sr_feuser_register)" url: "https://news.typo3.com/security/advisory/typo3-sa-2010-009" description: It has been discovered that the extension Frontend User Registration (sr_feuser_register) is susceptible to Cross Site Scripting (XSS) attacks. image: "https://news.typo3.com/_assets/d1e01514e4c4a5b3147940fa2ec50682/Images/og-image-news.jpg" date: 2026-06-11 modified: 2026-06-11 categories: - Security --- # TYPO3-SA-2010-009: Vulnerabilitiy in extension Frontend User Registration (sr_feuser_register) - [Security](https://news.typo3.com/article/category/security-1) TYPO3-SA-2010-009: Vulnerabilitiy in extension Frontend User Registration (sr\_feuser\_register) ================================================================================================ 14 April 2010 ![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 Frontend User Registration (sr\_feuser\_register) is susceptible to Cross Site Scripting (XSS) attacks. - ![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/7569d41262328e5ed8d27b53e03970ec.png)[Helmut Hummel](https://news.typo3.com/article/author/helmut-hummel) **Component Type:** Third party extension. This extensions is not part of the TYPO3 default installation. **Affected Versions:** Version 2.5.24 and all versions below. **Vulnerability Type:** Cross Site Scripting **Severity:** Medium **Suggested CVSS v2.0:** [AV:N/AC:M/Au:N/C:P/I:P/A:N/E:U/RL:OF/RC:C](http://jvnrss.ise.chuo-u.ac.jp/jtg/cvss/cvss2.cgi?vector=(AV:N/AC:M/Au:N/C:P/I:P/A:N/E:U/RL:OF/RC:C)&g=2&lang=en) ([What's that?](http://buzz.typo3.org/teams/security/article/use-of-common-vulnerability-scoring-system-in-typo3-security-advisories/)) **Release Date:** 14.04.2010 **Problem Description:** Failing to validate and sanitize user input the extension is susceptible to Cross Site Scripting (XSS), making it possible to execute arbitrary JavaScript. **Solution:** Updated versions are available from the TYPO3 extension manager. Users are advised to upgrade to extension version 2.5.25 which is available at **General advice:** Follow the recommendations that are given in the [TYPO3 Security Cookbook](http://typo3.org/fileadmin/security-team/typo3_security_cookbook_v-0.5.pdf). Please subscribe to the [typo3-announce mailing list](http://lists.typo3.org/cgi-bin/mailman/listinfo/typo3-announce) to receive future Security Bulletins via E-mail. **Credits:** Credits go to Chris John Riley, who discovered and reported the issue. ![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/bb9efc51bced8582e7b8c235f4b5f2b5.png) About the Author [Helmut Hummel](https://news.typo3.com/article/author/helmut-hummel) [More posts by this author](https://news.typo3.com/article/author/helmut-hummel)