CVE-2022-26874: Debian Linux

Medium severity, CVSS 5.4. EPSS: 1.1% chance of exploitation in the next 30 days.

lib/Horde/Mime/Viewer/Ooo.php in Horde Mime_Viewer before 2.2.4 allows XSS via an OpenOffice document, leading to account takeover in Horde Groupware Webmail Edition. This occurs after XSLT rendering.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only
• Horde Horde Mime Viewer: before 2.2.4 (fixed in 2.2.4)

Published 2022-03-11. Last modified 2026-06-17.