CVE-2026-25716

HighCVSS 7.1/10Last modified Oct 29, 2026

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.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Weakness enumeration

CWE-862

Affected software

Vendor	Product	Versions
Hallo Welt! GmbH	BlueSpice	>= 5.0.0, < 5.1.11; >= 5.2.0, < 5.2.7

References

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

Timeline

Published: Oct 23, 2026
Last modified: Oct 29, 2026
NVD status: Deferred

Related CVEs from 2026

CVE-2026-257189.1Gitea versions before 1.25.5 mishandle path resolution during template repository generation, allowing template processing to read or write CVE-2026-257205.4A vulnerability exists in SenseLive X3050’s web management interface due to improper session lifetime enforcement, allowing authenticated s CVE-2026-257218.8An OS command injection vulnerability exists in XWEB Pro version 1.12.1 and prior, enabling an authenticated attacker to achieve remote co CVE-2026-257229.1Claude Code is an agentic coding tool. Prior to version 2.0.57, Claude Code failed to properly validate directory changes when combined with CVE-2026-257236.5Claude Code is an agentic coding tool. Prior to version 2.0.55, Claude Code failed to properly validate commands using piped sed operations CVE-2026-257247.5Claude Code is an agentic coding tool. Prior to version 2.1.7, Claude Code failed to strictly enforce deny rules configured in settings.json CVE-2026-2572510.0Claude Code is an agentic coding tool. Prior to version 2.1.2, Claude Code's bubblewrap sandboxing mechanism failed to properly protect the CVE-2026-257269.8Cloudreve is a self-hosted file management and sharing system. Prior to version 4.13.0, the application uses the weak pseudo-random number g CVE-2026-257276.5time provides date and time handling in Rust. From 0.3.6 to before 0.3.47, when user-provided input is provided to any type that parses with CVE-2026-257287.5ClipBucket v5 is an open source video sharing platform. Prior to 5.5.3 - #40, a Time-of-Check to Time-of-Use (TOCTOU) race condition vulnera CVE-2026-257296.5DeepAudit is a multi-agent system for code vulnerability discovery. In 3.0.4 and earlier, there is an improper access control vulnerability CVE-2026-25736.4The GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor plugin for WordPress is vulnerable to Stored Cross-Si