Horde IMP Status.PHP3 Cross-Site Scripting Vulnerability Solution:
The vendor recommends upgrading to IMP 3.1 If this is not possible, a patched version of the 2.2 series is available. Install either the upgrade or the patch.
Additional upgrades are available.
Horde Project IMP 2.2.6
Horde Project IMP 2.2.7
Horde Project IMP 3.0