CVE-2010-0463: Horde Imp

Medium severity, CVSS 5.0. EPSS: 2% chance of exploitation in the next 30 days.

Horde IMP 4.3.6 and earlier does not request that the web browser avoid DNS prefetching of domain names contained in e-mail messages, which makes it easier for remote attackers to determine the network location of the webmail user by logging DNS requests.

Affected products

• Horde Imp: up to and including 4.3.6; version 2.0 only; version 2.2 only; version 2.2.1 only; version 2.2.2 only; version 2.2.3 only; …

Published 2010-01-29. Last modified 2026-06-16.