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2 selected

108 records

Priority LOW 21

Stored cross-site scripting in the service discovery active check output in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows an administrator who can configure active or custom checks to inject malic…

CVSS 4.0MEDIUM 4.8 Network High privileges User interaction EPSS 0.00143 Published 2026-06-08 Fixed in 2.5.0p5, 2.4.0p31 +1 CWE-79
TI-2026-07756 CVE-2026-8833 · GHSA-hc7p-6r8x-vr4q

Cross-site scripting in Checkmk

Priority LOW 38

Improper neutralization of HTML-encoded characters in the URL validation function in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows an authenticated user to bypass URL validation and inject malicio…

CVSS 4.0HIGH 8.5 Network Low privileges User interaction EPSS 0.0014 Published 2026-06-08 Fixed in 2.5.0p5, 2.4.0p31 +1 CWE-79
Priority LOW 21

Stored cross-site scripting in the global settings change log in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows an administrator who can change global settings to store malicious HTML or JavaScript…

CVSS 4.0MEDIUM 4.8 Network High privileges User interaction EPSS 0.00143 Published 2026-06-08 Fixed in 2.5.0p5, 2.4.0p31 +1 CWE-79
Priority LOW 33

Incorrect authorization in the User Messages dashboard widget in Checkmk <2.5.0p5 causes the message-fetching endpoints to return the dashboard creator's messages rather than the viewer's, allowing an attacker who knows…

CVSS 4.0MEDIUM 6.3 Network No auth No interaction EPSS 0.00187 Published 2026-06-08 Fixed in 2.5.0p5 CWE-863
Priority LOW 38

Stored cross-site scripting in the URL dashboard widget in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows a user with dashboard editing permissions to store a URL with a dangerous URI scheme such a…

CVSS 4.0HIGH 8.5 Network Low privileges User interaction EPSS 0.00136 Published 2026-06-08 Fixed in 2.5.0p5, 2.4.0p31 +1 CWE-79
Priority LOW 22

Privilege escalation in the mk_mysql agent plugin on Windows in Checkmk <2.4.0p29, <2.3.0p47, and 2.2.0 (EOL) allows a local unprivileged user able to create a Windows service whose name matches 'MySQL' or 'MariaDB' (or…

CVSS 4.0MEDIUM 5.2 Local Low privileges No interaction EPSS 0.00119 Published 2026-05-13 Fixed in 2.4.0p29, 2.3.0p47 CWE-427
Priority LOW 25

Livestatus injection in the prediction graph page in Checkmk <2.5.0b4, <2.4.0p26, and <2.3.0p47 allows an authenticated user to inject arbitrary Livestatus commands via a crafted service name parameter due to insufficien…

CVSS 4.0MEDIUM 5.3 Network Low privileges No interaction EPSS 0.00178 Published 2026-04-10 Fixed in 2.5.0b4, 2.4.0p26 +1 CWE-140
Priority LOW 25

Livestatus injection in the notification test mode in Checkmk <2.5.0b4 and <2.4.0p26 allows an authenticated user with access to the notification test page to inject arbitrary Livestatus commands via a crafted service de…

CVSS 4.0MEDIUM 5.1 Network High privileges No interaction EPSS 0.002 Published 2026-04-10 Fixed in 2.5.0b4, 2.4.0p26 CWE-140
Priority LOW 25

Livestatus injection in the monitoring quicksearch in Checkmk <2.5.0b4 allows an authenticated attacker to inject livestatus commands via the search query due to insufficient input sanitization in search filter plugins.

CVSS 4.0MEDIUM 5.3 Network Low privileges No interaction EPSS 0.00178 Published 2026-04-10 Fixed in 2.5.0b4 CWE-140
Priority MEDIUM 41

Local privilege escalation in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0p25, and Checkmk 2.5.0 (beta) before 2.5.0b3 allows a site user to escalate their privileges to root, by manipul…

CVSS 4.0CRITICAL 9.3 Local High privileges No interaction EPSS 0.00123 Published 2026-04-07 Fixed in 2.3.0p46, 2.4.0p25 +1 CWE-426
TI-2026-02986 CVE-2026-3466 · GHSA-6wcg-pxr7-8826

Cross-site scripting in dashlet title

Priority LOW 38

Insufficient sanitization of dashboard dashlet title links in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0p25, and Checkmk 2.5.0 (beta) before 2.5.0 allows an attacker with dashboard cre…

CVSS 4.0HIGH 8.5 Network Low privileges User interaction EPSS 0.00232 Published 2026-04-07 Fixed in 2.3.0p46, 2.4.0p25 +1 CWE-79
Priority LOW 24

Insufficient permission validation on multiple REST API Quick Setup endpoints in Checkmk 2.5.0 (beta) before version 2.5.0b2 and 2.4.0 before version 2.4.0p25 allows low-privileged users to perform unauthorized actions o…

CVSS 4.0MEDIUM 5.3 Network Low privileges No interaction EPSS 0.00245 Published 2026-04-01 Fixed in 2.5.0b2, 2.4.0p25 CWE-280
Priority LOW 38

Stored cross-site scripting (XSS) in Checkmk version 2.5.0 (beta) before 2.5.0b2 allows authenticated users with permission to create pending changes to inject malicious JavaScript into the Pending Changes sidebar, which…

CVSS 4.0HIGH 8.5 Network High privileges User interaction EPSS 0.00152 Published 2026-03-31 Fixed in 2.5.0b2 CWE-79
Priority LOW 38

Stored cross-site scripting (XSS) in Checkmk 2.5.0 (beta) before 2.5.0b2 allows authenticated users with permission to create hosts or services to execute arbitrary JavaScript in the browsers of other users performing se…

CVSS 4.0HIGH 8.6 Network Low privileges User interaction EPSS 0.0015 Published 2026-03-31 Fixed in 2.5.0b2 CWE-79
Priority LOW 34

Exposure of session signing secret in Checkmk <2.4.0p23, <2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies.

CVSS 4.0HIGH 7.3 Network High privileges User interaction EPSS 0.00348 Published 2026-03-24 Fixed in 2.4.0p23, 2.3.0p45 CWE-522
Priority LOW 33

Improper permission enforcement in Checkmk versions 2.4.0 before 2.4.0p23, 2.3.0 before 2.3.0p43, and 2.2.0 (EOL) allows unauthenticated users to enumerate existing hosts by observing different HTTP response codes in dep…

CVSS 4.0MEDIUM 6.3 Network No auth No interaction EPSS 0.00202 Published 2026-03-13 Fixed in 2.4.0p23, 2.3.0p43 CWE-204
Priority LOW 30

Improper permission enforcement in Checkmk versions 2.4.0 before 2.4.0p23, 2.3.0 before 2.3.0p43, and 2.2.0 (EOL) allows authenticated users to enumerate existing hosts by observing different HTTP response codes in agent…

CVSS 4.0MEDIUM 5.3 Network Low privileges No interaction EPSS 0.00252 Published 2026-03-13 Fixed in 2.4.0p23, 2.3.0p43 CWE-204
TI-2026-02680 CVE-2026-3103 · GHSA-g94r-mvhr-pc74

Deletion of passwords via RestApi

Priority LOW 23

A logic error in the remove_password() function in Checkmk GmbH's Checkmk versions <2.4.0p23, <2.3.0p43, and 2.2.0 (EOL) allows a low-privileged user to cause data loss.

CVSS 4.0MEDIUM 5.3 Network Low privileges No interaction EPSS 0.00197 Published 2026-03-04 Fixed in 2.4.0p23, 2.3.0p43 CWE-863
Priority HIGH 67

Improper neutralization of input in Checkmk versions 2.4.0 before 2.4.0p22, and 2.3.0 before 2.3.0p43 allows an attacker that can manipulate a host's check output to inject malicious JavaScript into the Synthetic Monitor…

CVSS 4.0HIGH 7.3 Network Low privileges User interaction EPSS 0.00168 Published 2026-02-26 Fixed in 2.4.0p22, 2.3.0p43 CWE-79
Priority LOW 11

SSH private keys of the "Remote alert handlers (Linux)" rule were exposed in the rule page's HTML source in Checkmk <= 2.4.0p18 and all versions of Checkmk 2.3.0.

CVSS 4.0LOW 2.3 Network Low privileges No interaction EPSS 0.00216 Published 2025-12-18 Fixed in 2.4.0p18 CWE-212
Priority LOW 34

Insufficient permission validation in Checkmk versions prior to 2.4.0p17 and 2.3.0p42 allow low-privileged users to view agent information via the REST API, which could lead to information disclosure.

CVSS 4.0MEDIUM 6.3 Network Low privileges No interaction EPSS 0.00243 Published 2025-12-18 Fixed in 2.4.0p17, 2.3.0p42 CWE-280
Priority LOW 23

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 4.0MEDIUM 5.3 Network Low privileges No interaction EPSS 0.00214 Published 2025-11-18 Fixed in 2.4.0p16 CWE-280
Priority LOW 23

Insufficient permission validation in Checkmk 2.4.0 before version 2.4.0p16 allows low-privileged users to modify notification parameters via the REST API, which could lead to unauthorized actions or information disclosu…

CVSS 4.0MEDIUM 5.3 Network Low privileges No interaction EPSS 0.00176 Published 2025-11-18 Fixed in 2.4.0p16 CWE-280
Priority LOW 21

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…

CVSS 4.0MEDIUM 4.8 Local Low privileges No interaction EPSS 0.00109 Published 2025-11-18 Fixed in 2.4.0p16, 2.3.0p41 CWE-732
Priority HIGH 72

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.

CVSS 4.0HIGH 8.5 Network High privileges User interaction EPSS 0.00603 Published 2025-10-30 Fixed in 2.4.0p14, 2.3.0p39 CWE-80
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