CVE-2023-22359
User-enumeration in RestAPI
User enumeration in Checkmk <=2.2.0p4 allows an authenticated attacker to enumerate usernames.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
User-enumeration in RestAPI
User enumeration in Checkmk <=2.2.0p4 allows an authenticated attacker to enumerate usernames.
- Record
CVE-2023-22359- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-203
- Updated
- 2026-11-02
EUVDEUVD-2023-26522
User enumeration in Checkmk <=2.2.0p4 allows an authenticated attacker to enumerate usernames.
- Record
EUVD-2023-26522- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-r33q-ccvx-f3w8
User enumeration in Checkmk <=2.2.0p4 allows an authenticated attacker to enumerate usernames.
User enumeration in Checkmk <=2.2.0p4 allows an authenticated attacker to enumerate usernames.
- Record
GHSA-r33q-ccvx-f3w8- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200, CWE-203
- Updated
- 2026-11-02
NVD
User enumeration in Checkmk <=2.2.0p4 allows an authenticated attacker to enumerate usernames.
- Record
CVE-2023-22359- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-203
- Updated
- 2026-11-02
OSV
User enumeration in Checkmk <=2.2.0p4 allows an authenticated attacker to enumerate usernames.
- Record
CVE-2023-22359- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2023-22359
User enumeration in Checkmk <=2.2.0p4 allows an authenticated attacker to enumerate usernames.
- Record
UBUNTU-CVE-2023-22359- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-22359 is a medium vulnerability (CVSS 4.3) in Checkmk, published June 26, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.50%, the 43rd percentile. No source names a fixed version.