CVE-2023-2020

MEDIUM

Checkmk <= 2.1.0p27 and <= 2.2.0b4 - Unauthorized Downtime Scheduling via REST API

Title source: llm

Description

Insufficient permission checks in the REST API in Tribe29 Checkmk <= 2.1.0p27 and <= 2.2.0b4 (beta) allow unauthorized users to schedule downtimes for any host.

References (1)

Core 1

Core References

Vendor Advisory

https://checkmk.com/werk/13981

Scores

CVSS v3 4.3

EPSS 0.0040

EPSS Percentile 31.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-280 CWE-863

Status published

Products (2)

checkmk/checkmk 2.1.0 (36 CPE variants)

checkmk/checkmk 2.2.0 b1 (5 CPE variants)

Published Apr 18, 2023

Tracked Since Feb 18, 2026