CVE-2025-26844: Znuny

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

An issue was discovered in Znuny through 7.1.3. A cookie is set without the HttpOnly flag.

Affected products

• Znuny Znuny: up to and including 7.1.3

Published 2025-05-08. Last modified 2026-06-17.