---
title: "TYPO3-CORE-SA-2019-003: Broken Access Control in Localization Handling"
url: "https://news.typo3.com/security/advisory/typo3-core-sa-2019-003"
description: It has been discovered, that TYPO3 CMS is susceptible to broken access control.
image: "https://news.typo3.com/_assets/d1e01514e4c4a5b3147940fa2ec50682/Images/og-image-news.jpg"
date: 2026-06-11
modified: 2026-06-11
categories:
  - "Developer & Technology"
  - TYPO3 CMS
---

# TYPO3-CORE-SA-2019-003: Broken Access Control in Localization Handling

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

TYPO3-CORE-SA-2019-003: Broken Access Control in Localization Handling
======================================================================

22 January 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 TYPO3 CMS is susceptible to broken access control.

- ![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/bbf959d8e683550c90ae922aff9145d8.jpeg)[Zoe Legacy](https://news.typo3.com/article/author/zoe-legacy)

- **Component Type:** TYPO3 CMS
- **Vulnerable subcomponent:** Localization Handling
- **Release Date:** January 22, 2019
- **Vulnerability Type:** Broken Access Control
- **Affected Versions:** 8.0.0-8.7.22
- **Severity:** Medium
- **Suggested CVSS v3.0:** [AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:F/RL:O/RC:C](https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:F/RL:O/RC:C)
- **CVE:** not assigned yet

### Problem Description

It has been discovered that backend users having limited access to specific languages are capable of modifying and creating pages in the default language which actually should be disallowed. A valid backend user account is needed in order to exploit this vulnerability.

### Solution

Update to TYPO3 version 8.7.23 that fixes the problem described.

### Credits

Thanks to Sascha Egerer who reported this issue and to TYPO3 core team member Oliver Hader who fixed the issue.

### General Advice

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

### General Note

All security related code changes are tagged so that you can easily look them up in our [review system](https://review.typo3.org/#/q/status:merged+project:Packages/TYPO3.CMS+topic:security,n,z).

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

About the Author

[Zoe Legacy](https://news.typo3.com/article/author/zoe-legacy)

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