MEDIUM

GHSA-8j9v-4hhh-x43c

Cross-Site Scripting (XSS) in TYPO3 component CSS styled content

Quick fix

GHSA-8j9v-4hhh-x43c — typo3/cms: upgrade to the fixed version with the command below.

composer require typo3/cms:^6.2.19

Details

Failing to properly encode user input, the CSS styled content component is susceptible to Cross-Site Scripting, allowing authenticated editors to inject arbitrary HTML or JavaScript.

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/typo3/cms

Introduced in: 6.2.0Fixed in: 6.2.19

Fixcomposer require typo3/cms:^6.2.19

Packagist/typo3/cms

Introduced in: 7.6.0Fixed in: 7.6.4

Fixcomposer require typo3/cms:^7.6.4

References

https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/2016-02-23-3.yaml[WEB]
https://typo3.org/security/advisory/typo3-core-sa-2016-007[WEB]