Multiple vulnerabilities have been identified in various Horde products, which could be exploited by attackes to bypass security restrictions or manipulate certain data.
The first vulnerability is caused by missing ownership validation within Horde API and share changes, which could be exploited by malicious users to gain elevated privileges.
The second issue is caused by an error in the HTML filter that does not filter "frame" and "frameset" HTML elements, which could be exploited by attackers to delete and purge arbitrary messages.
Credits
Vulnerabilities reported by the vendor and Ulf Harnhammar (Secunia Research).
ChangeLog
2008-01-10 : Initial release
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