CVE-2010-5334: Icewarp Webclient

High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days.

IceWarp Webclient before 10.2.1 has a directory traversal vulnerability. This can result in loss of confidential data of IceWarp Mailserver and the operating system. Input passed via a certain parameter (_c to basic/index.html) is not properly sanitised and can therefore be exploited to browse the partition where IceWarp is installed (or the whole system) and read arbitrary files.

Affected products

• Icewarp Webclient: from 10.0, before 10.2.1 (fixed in 10.2.1)

Published 2019-10-11. Last modified 2026-06-16.