TYPO3 is susceptible to Cross-Site Flashing

Impact

The flashplayer misses to validate flash and image files. Therefore it is possible to embed flash videos from external domains.

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

Original source description

References

• Security advisory github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/2015-12-15-4.yaml
• Source reference github.com/TYPO3/typo3
• Security advisory typo3.org/security/advisory/typo3-core-sa-2015-014
• Security advisory typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2015-014