Is CVE-2022-40816 actively exploited?

CVE-2022-40816 has no public evidence of in-the-wild exploitation as of 2025-05-21.

What is the CVSS score for CVE-2022-40816?

CVE-2022-40816 has a CVSS score of 6.5 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

How do I patch CVE-2022-40816?

Patch guidance is available from zammad security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2022-40816.

CVE-2022-40816 - remediation guidance & executive summary

Description

Zammad 5.2.1 is vulnerable to Incorrect Access Control. Zammad's asset handling mechanism has logic to ensure that customer users are not able to see personal information of other users. This logic was not effective when used through a web socket connection, so that a logged-in attacker would be able to fetch personal data of other users by querying the Zammad API. This issue is fixed in , 5.2.2.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none
Weaknesses: CWE-863 · Incorrect Authorization CWE-863 · Incorrect Authorization

Metadata

Primary Vendor: ZAMMAD
Published: 9/27/2022
Last Modified: 5/21/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

zammad : zammad

Remediation Guidance

Executive Summary

Cite this page

CVE-2022-40816. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2022-40816

View on NIST NVD

CVE-2022-40816 vulnerability