Zammad up to 5.3.x Article access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Zammad up to 5.3.x. Affected by this vulnerability is an unknown functionality of the component Article Handler. Such manipulation leads to access control. This vulnerability is documented as CVE-2023-29868. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Zammad up to 5.3.x and classified as critical. Affected by this issue is an unknown code block of the component Article Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Zammad 5.3.x (Fixed in 5.4.0) is vulnerable to Incorrect Access Control. An authenticated attacker with agent and customer roles could perform unauthorized changes on articles where they only have customer permissions.

The weakness was released 05/02/2023. The advisory is shared for download at zammad.com. This vulnerability is handled as CVE-2023-29868 since 04/07/2023. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 5.4.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-33405). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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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

EPSS Score: 🔍
EPSS Percentile: 🔍

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 5.4.0

Timelineinfo

04/07/2023 🔍
05/02/2023 +25 days 🔍
05/02/2023 +0 days 🔍
12/15/2025 +958 days 🔍

Sourcesinfo

Advisory: zammad.com
Status: Confirmed

CVE: CVE-2023-29868 (🔍)
GCVE (CVE): GCVE-0-2023-29868
GCVE (VulDB): GCVE-100-227876
EUVD: 🔍

Entryinfo

Created: 05/02/2023 19:16
Updated: 12/15/2025 20:27
Changes: 05/02/2023 19:16 (39), 05/24/2023 19:34 (11), 01/30/2025 19:34 (26), 12/15/2025 20:27 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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