Checkmk: >> Checkmk >> 2.2.0 Security Vulnerabilities
In Checkmk versions prior to 2.4.0p16, 2.3.0p41, and all versions of 2.2.0 and older, the mk_inotify plugin creates world-readable and writable files, allowing any local user on the system to read the plugin's output and manipulate it, potentially leading to unauthorized access to or modification of monitoring data.
CVSS Score
4.4
EPSS Score
0.0
Published
2025-11-18
Insufficient permission validation on multiple REST API endpoints in Checkmk 2.2.0, 2.3.0, and 2.4.0 before version 2.4.0p16 allows low-privileged users to perform unauthorized actions or obtain sensitive information
CVSS Score
5.4
EPSS Score
0.0
Published
2025-11-18
Cross-Site Scripting (XSS) vulnerability in Checkmk's distributed monitoring allows a compromised remote site to inject malicious HTML code into service outputs in the central site. Affecting Checkmk before 2.4.0p14, 2.3.0p39, 2.2.0 and 2.1.0 (eol).
CVSS Score
8.4
EPSS Score
0.001
Published
2025-10-30
Use of an insecure temporary directory in the Windows License plugin for the Checkmk Windows Agent allows Privilege Escalation. This issue affects Checkmk: from 2.4.0 before 2.4.0p13, from 2.3.0 before 2.3.0p38, from 2.2.0 before 2.2.0p46, and all versions of 2.1.0 (EOL).
CVSS Score
7.8
EPSS Score
0.0
Published
2025-10-09
Insufficient escaping in the report scheduler within Checkmk <2.4.0p13, <2.3.0p38, <2.2.0p46 and 2.1.0 (EOL) allows authenticated attackers to define the storage location of report file pairs beyond their intended root directory.
CVSS Score
6.5
EPSS Score
0.001
Published
2025-10-09
Potential use of sensitive information in GET requests in Checkmk GmbH's Checkmk versions <2.4.0p13, <2.3.0p38, <2.2.0p46, and 2.1.0 (EOL) may cause sensitive form data to be included in URL query parameters, which may be logged in various places such as browser history or web server logs.
CVSS Score
4.3
EPSS Score
0.0
Published
2025-10-09
Improper neutralization of Livestatus command delimiters in autocomplete endpoint within the RestAPI of Checkmk versions <2.4.0p6, <2.3.0p35, <2.2.0p44, and 2.1.0 (EOL) allows an authenticated user to inject arbitrary Livestatus commands.
CVSS Score
8.8
EPSS Score
0.001
Published
2025-07-04
Packages downloaded by Checkmk's automatic agent updates on Linux and Solaris have incorrect permissions in Checkmk < 2.4.0p1, < 2.3.0p32, < 2.2.0p42 and <= 2.1.0p49 (EOL). This allows a local attacker to read sensitive data.
CVSS Score
5.5
EPSS Score
0.0
Published
2025-05-22
Argument injection in special agent configuration in Checkmk <2.4.0p1, <2.3.0p32, <2.2.0p42 and 2.1.0 allows authenticated attackers to write arbitrary files
CVSS Score
8.8
EPSS Score
0.001
Published
2025-05-21
Privilege escalation in jar_signature agent plugin in Checkmk versions <2.4.0b7 (beta), <2.3.0p32, <2.2.0p42, and 2.1.0p49 (EOL) allow user with write access to JAVA_HOME/bin directory to escalate privileges.
CVSS Score
8.8
EPSS Score
0.001
Published
2025-05-13
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