---
title: "CVE-2026-25716: Hallo Welt! GmbH BlueSpice - Broken Access Control"
description: "Hallo Welt! GmbH BlueSpice 5.0.0 < 5.1.11 and 5.2.0 < 5.2.7 contains a broken access control caused by missing authorization checks in UserManager block/unblock REST endpoints, letting authenticated users block or unblock arbitrary accounts including administrators, exploit requires authentication without special privileges."
url: https://panop.io/threat-heartbeat/CVE-2026-25716/
---

# CVE-2026-25716 Hallo Welt! GmbH BlueSpice - Broken Access Control

Hallo Welt! GmbH BlueSpice 5.0.0 < 5.1.11 and 5.2.0 < 5.2.7 contains a broken access control caused by missing authorization checks in UserManager block/unblock REST endpoints, letting authenticated users block or unblock arbitrary accounts including administrators, exploit requires authentication without special privileges.

CVSS base score 7.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.18% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-25716)

## Details

Type

Broken Access Control

Impact

Denial Of Service, Broken Access Control

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Published

23 October 2026

Updated

25 October 2026

Weakness

[CWE-862](https://cwe.mitre.org/data/definitions/862.html)

## Vendor fix

Update to versions 5.1.11 or 5.2.7 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-25716](https://nvd.nist.gov/vuln/detail/CVE-2026-25716)
- [https://en.wiki.bluespice.com/wiki/Security:Security\_Advisories/BSSA-2026-07](https://en.wiki.bluespice.com/wiki/Security:Security_Advisories/BSSA-2026-07)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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