---
title: "CVE-2026-25784: Hallo Welt! GmbH BlueSpice - Privilege Escalation"
description: "Hallo Welt! GmbH BlueSpice 5.2.3 to before 5.2.7 and 5.2.7 container images before 2026-10-19 contain a privilege escalation caused by insecure default value of $mwsgTokenAuthenticatorServiceCIDR in LocalSettings.php, letting any user with read access obtain sysop session tokens via REST API, exploit requires publicly readable wiki."
url: https://panop.io/threat-heartbeat/CVE-2026-25784/
---

# CVE-2026-25784 Hallo Welt! GmbH BlueSpice - Privilege Escalation

Hallo Welt! GmbH BlueSpice 5.2.3 to before 5.2.7 and 5.2.7 container images before 2026-10-19 contain a privilege escalation caused by insecure default value of $mwsgTokenAuthenticatorServiceCIDR in LocalSettings.php, letting any user with read access obtain sysop session tokens via REST API, exploit requires publicly readable wiki.

CVSS base score 9.8 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.34% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-25784)

## Details

Type

Privilege Escalation

Impact

Privilege Escalation

CVSS vector

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

Published

23 October 2026

Updated

25 October 2026

Weakness

[CWE-269](https://cwe.mitre.org/data/definitions/269.html)

## Vendor fix

Update to BlueSpice version 5.2.7 after 2026-10-19 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-2026-25784](https://nvd.nist.gov/vuln/detail/CVE-2026-25784)
- [https://en.wiki.bluespice.com/wiki/Security:Security\_Advisories/BSSA-2026-07](https://en.wiki.bluespice.com/wiki/Security:Security_Advisories/BSSA-2026-07)
- [https://github.com/hallowelt/docker-bluespice-wiki/commit/04b840be565b508f6e741c376970909b69d2a444](https://github.com/hallowelt/docker-bluespice-wiki/commit/04b840be565b508f6e741c376970909b69d2a444)

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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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