Zammad up to 7.0.0 Organization access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k1.13-

Summaryinfo

A vulnerability labeled as critical has been found in Zammad up to 7.0.0. This issue affects some unknown processing of the component Organization Handler. Executing a manipulation can lead to access control. This vulnerability appears as CVE-2026-34248. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Zammad up to 7.0.0. This vulnerability affects an unknown part of the component Organization Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality. CVE summarizes:

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, customers in shared organizations (means they can see each other's tickets) could see fields which are not intended for customers - including fields not intended for them at all (e.g. priority, custom ticket attributes for internal purposes). This was the case when a customer opened a ticket from another user of the same shared organization. They are not able to modify these field. This vulnerability is fixed in 7.0.1.

The advisory is available at github.com. This vulnerability was named CVE-2026-34248 since 03/26/2026. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading to version 7.0.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-1000). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Zammad Zammad

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Zammad 7.0.1

Timelineinfo

03/26/2026 CVE reserved
04/08/2026 +12 days Advisory disclosed
04/08/2026 +0 days VulDB entry created
04/09/2026 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-34248 (🔒)
GCVE (CVE): GCVE-0-2026-34248
GCVE (VulDB): GCVE-100-356338
CERT Bund: WID-SEC-2026-1000 - Zammad: Mehrere Schwachstellen

Entryinfo

Created: 04/08/2026 20:53
Updated: 04/09/2026 09:57
Changes: 04/08/2026 20:53 (66), 04/09/2026 09:57 (7)
Complete: 🔍
Cache ID: 216:DC1:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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