CVE-2010-5339: Icewarp Webclient

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

IceWarp Webclient before 10.2.1 has XSS via an HTTP POST request: webmail/basic/ with the parameter _dlg[captcha][uid] is non-persistent in 10.1.3 and 10.2.0.

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.