Auth bypass in Zammad
CVE-2022-40816
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.
Vulnerability class: Broken Access Control
EPSS: 0.007 (49.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Zammad
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-40816?
- CVE-2022-40816 is a medium-severity vulnerability in Zammad, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2022-09-27.
- How severe is CVE-2022-40816?
- Medium severity. CVSS v3 base score is 6.5 out of 10.