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Medium · 6.1 CVE-2018-25269 EUVD-2018-21785GHSA-xx24-qg5f-3r29

ICEWARP 11.0.0.0 Cross-Site Scripting via Email HTML Injection

Published Apr 22, 2026 · Updated May 25, 2026 · Assigned by VulnCheck

Description

ICEWARP 10.3.4 and 11.0.0.0 contains a cross-site scripting vulnerability that allows attackers to inject malicious HTML elements into emails by embedding base64-encoded payloads in object and embed tags. Attackers can craft emails containing data URIs with embedded scripts that execute in the client when the email is viewed, compromising user sessions and stealing sensitive information.

Affected products

VendorProductAffectedFixed
icewarp ICEWARP Client 10.3.4, 11.0.0.0 —

References