CVE-2026-25716

Missing Authorization vulnerability in Hallo Welt! GmbH BlueSpice (Extension:BlueSpiceUserManager) allows any authenticated user without special privileges to block or unblock arbitrary user accounts, including administrators. The REST endpoints /bs-usermanager/v1/block/create and /bs-usermanager/v1/block/delete call UserManager::blockUser() and UserManager::unblockUser(), which do not verify the permissions of the acting user. This allows locking out all administrators (denial of service) and lifting blocks imposed by administrators. This issue affects BlueSpice: from 5.0.0 before 5.1.11, from 5.2.0 before 5.2.7.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://en.wiki.bluespice.com/wiki/Security:Security_Advisories/BSSA-2026-07

Configurations

No configuration.

History

23 Oct 2026, 09:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-23 09:17

Updated : 2026-10-29 02:16

NVD link : CVE-2026-25716

Mitre link : CVE-2026-25716

CVE.ORG link : CVE-2026-25716

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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