High · CVSS 7.1CVE-2026-25716

BlueSpiceUserManager: Missing authorization in REST endpoints for blocking and unblocking usersCVE-2026-25716

Answer in brief

CVE-2026-25716 records a High severity (CVSS 7.1) vulnerability in BlueSpiceUserManager: Missing authorization in REST endpoints for blocking and unblocking users. The current sources do not mark it as known exploited. The current feed maps Hallo Welt! GmbH/Extension:BlueSpiceUserManager (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 23, 2026Updated Oct 23, 2026Source checked Oct 23, 2026First seen by HOL Oct 23, 2026Material review Oct 23, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.1
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Hallo Welt! GmbH/Extension:BlueSpiceUserManager (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Hallo Welt! GmbH/Extension:BlueSpiceUserManagergeneric	>=5.0.0 <5.1.11 \|\| >=5.2.0 <5.2.7	5.1.11, 5.2.7

Recommended response

Check inventory. Check lockfiles and deployed manifests for Hallo Welt! GmbH/Extension:BlueSpiceUserManager.
Review the reported fix. Source-reported solution: Update to BlueSpice 5.1.11 or 5.2.7 or later.

Evidence timeline and material changes

Published upstream
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 23, 2026

Sources and claim methodology

Source referenceen.wiki.bluespice.com

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.