MEDIUM5.4

GHSA-8m6j-p5jv-v69w

TYPO3 Cross-Site Scripting in Online Media Asset Rendering

Quick fix

GHSA-8m6j-p5jv-v69w — typo3/cms: upgrade to the fixed version with the command below.

composer require typo3/cms:^7.6.32

Details

Failing to properly encode user input, online media asset rendering (`*.youtube` and `*.vimeo` files) is vulnerable to cross-site scripting. A valid backend user account or write access on the server system (e.g. SFTP) 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: 7.0.0Fixed in: 7.6.32

Fixcomposer require typo3/cms:^7.6.32

Packagist/typo3/cms

Introduced in: 8.0.0Fixed in: 8.7.21

Fixcomposer require typo3/cms:^8.7.21

Packagist/typo3/cms

Introduced in: 9.0.0Fixed in: 9.5.2

Fixcomposer require typo3/cms:^9.5.2

References

https://github.com/TYPO3/typo3/commit/20927adfb8aae0093508c904937e40114b92a90c[WEB]
https://github.com/TYPO3/typo3/commit/a32a9a746f807b14571139f0cb7caa00b8d037a5[WEB]
https://github.com/TYPO3/typo3/commit/c9174937802581bfecfaa788512a4f6e5cf8e9c7[WEB]
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/2018-12-11-1.yaml[WEB]
https://github.com/TYPO3/typo3[PACKAGE]
https://typo3.org/security/advisory/typo3-core-sa-2018-006[WEB]