CVE-2025-57880: Hallowelt Bluespice

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper Encoding or Escaping of Output vulnerability in Hallo Welt! GmbH BlueSpice (Extension:BlueSpiceWhoIsOnline) allows Cross-Site Scripting (XSS). This issue affects BlueSpice: from 5 through 5.1.1.

Affected products

• Hallowelt Bluespice: from 5.0, before 5.1.2 (fixed in 5.1.2)

Published 2025-09-19. Last modified 2026-06-17.