CVE-2025-26846

CRITICAL
2025-05-12 [email protected]
9.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 18:41 vuln.today
CVE Published
May 12, 2025 - 15:15 nvd
CRITICAL 9.8

Tags

Authentication Bypass Znuny

Description

An issue was discovered in Znuny before 7.1.4. Permissions are not checked properly when using the Generic Interface to update ticket metadata.

Analysis

An issue was discovered in Znuny before 7.1.4. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified as Missing Authorization (CWE-862), which allows attackers to access resources or perform actions without proper authorization checks. An issue was discovered in Znuny before 7.1.4. Permissions are not checked properly when using the Generic Interface to update ticket metadata. Affected products include: Znuny. Version information: before 7.1.4..

Affected Products

Znuny.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement role-based access control, validate authorization on every request server-side, apply principle of least privilege.

Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: +0.4
CVSS: +49
POC: 0

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CVE-2025-26846 vulnerability details – vuln.today
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