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A vulnerability, which was classified as critical, was found in Zammad 5.2.1. This affects some unknown processing of the component Ticket Handler. The manipulation with an unknown input leads to a permission vulnerability. CWE is classifying the issue as CWE-275. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Zammad 5.2.1 has a fine-grained permission model that allows to configure read-only access to tickets. However, agents were still wrongly able to perform some operations on such tickets, like adding and removing links, tags. and related answers. This issue has been fixed in 5.2.2.

The weakness was shared 09/28/2022 as zaa-2022-10. The advisory is shared at This vulnerability is uniquely identified as CVE-2022-40817 since 09/19/2022. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1222 for this issue.

Upgrading to version 5.2.2 eliminates this vulnerability.





CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍


VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

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

NVD Base Score: 4.3
NVD Vector: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍


Class: Permission
CWE: CWE-275 / CWE-266
ATT&CK: T1222

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

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


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Zammad 5.2.2


09/19/2022 🔍
09/28/2022 +9 days 🔍
09/28/2022 +0 days 🔍
10/24/2022 +26 days 🔍


Advisory: zaa-2022-10
Status: Confirmed

CVE: CVE-2022-40817 (🔍)


Created: 09/28/2022 06:55 AM
Updated: 10/24/2022 03:03 PM
Changes: 09/28/2022 06:55 AM (40), 10/24/2022 03:03 PM (11)
Complete: 🔍


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