--- title: "SECURITY-ISSUES-FOUND-IN-TYPO3-CORE-1: Security issues found in TYPO3 core" url: "https://news.typo3.com/security/advisory/security-issues-found-in-typo3-core-1" image: "https://news.typo3.com/_assets/d1e01514e4c4a5b3147940fa2ec50682/Images/og-image-news.jpg" date: 2026-06-11 modified: 2026-06-11 categories: - "Developer & Technology" - Security --- # SECURITY-ISSUES-FOUND-IN-TYPO3-CORE-1: Security issues found in TYPO3 core - [Developer & Technology](https://news.typo3.com/article/category/developer-technology) - [Security](https://news.typo3.com/article/category/security-1) SECURITY-ISSUES-FOUND-IN-TYPO3-CORE-1: Security issues found in TYPO3 core ========================================================================== 28 March 2012 ![A laptop screen displaying a list of security advisories](https://news.typo3.com/typo3temp/assets/_processed_/d/c/csm_security_blog_default_77f8e86036.webp) - ![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/7569d41262328e5ed8d27b53e03970ec.png)[Helmut Hummel](https://news.typo3.com/article/author/helmut-hummel) **It has been discovered that the TYPO3 Core is vulnerable to Cross-Site Scripting, Insecure Unserialize and Information Disclosure.** Please read the advisory for a description and solutions of the issue: [TYPO3 Security Bulletin TYPO3-CORE-SA-2012-001: Several Vulnerabilities in TYPO3 Core](https://typo3.org/security/advisory/typo3-core-sa-2012-001/) **In general the TYPO3 Security Team recommends to read the following pages:** - The TYPO3 Security Guide:  - Make sure you are subscribed to the TYPO3 Announce List:  - See all TYPO3 security advisories ![](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)