MEDIUM6.5

GHSA-772m-43f3-hmf8

TYPO3 Broken Access Control in Localization Handling

Quick fix

GHSA-772m-43f3-hmf8 — typo3/cms: upgrade to the fixed version with the command below.

composer require typo3/cms:^8.7.23

Details

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/typo3/cms

Introduced in: 8.0.0Fixed in: 8.7.23

Fixcomposer require typo3/cms:^8.7.23

References

https://github.com/TYPO3/typo3/commit/5004201ee77a69cb825637bc95cdeedb1186f4d4[WEB]
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/2019-01-22-3.yaml[WEB]
https://github.com/TYPO3/typo3[PACKAGE]
https://typo3.org/security/advisory/typo3-core-sa-2019-003[WEB]