Some vulnerabilities have been reported in Typo3, which can be exploited by malicious people to conduct cross-site scripting attacks and disclose sensitive information.

1) Input passed via unspecified fields to the backend user interface is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

2) An error in the "jumpUrl" mechanism can be exploited to read arbitrary files from local resources by disclosing a hash secret used to restrict file access.

Solution
Update to version 4.0.12, 4.1.10, or 4.2.6.

Provided and/or discovered by
The vendor credits:
1) Jelmer de Hen and Dmitry Dulepov
2) Marcus Krause

Changelog
Further details available to Secunia VIM customers

Original Advisory
http://typo3.org/teams/security/security-bulletins/typo3-sa-2009-002/

Deep Links
Links available to Secunia VIM customers