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110 vulnerabilities by checkmk
CVE-2026-9549 (GCVE-0-2026-9549)
Vulnerability from cvelistv5 – Published: 2026-06-08 12:07 – Updated: 2026-06-08 13:02
VLAI
Title
Fix XSS in service discovery active check output
Summary
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 malicious HTML or JavaScript into check output that executes in the browser of an admin or a user with host read permissions when they run the check on the service discovery page.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/17993 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.5.0 , < 2.5.0p5
(semver)
Affected: 2.4.0 , < 2.4.0p31 (semver) Affected: 2.3.0 , < 2.3.0p48 (semver) Affected: 2.2.0 (semver) |
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CVE-2026-8833 (GCVE-0-2026-8833)
Vulnerability from cvelistv5 – Published: 2026-06-08 12:06 – Updated: 2026-06-08 13:02
VLAI
Title
XSS in urls
Summary
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 malicious URLs such as javascript: URIs, resulting in cross-site scripting when another user interacts with the crafted link.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/20002 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.5.0 , < 2.5.0p5
(semver)
Affected: 2.4.0 , < 2.4.0p31 (semver) Affected: 2.3.0 , < 2.3.0p48 (semver) Affected: 2.2.0 (semver) |
Credits
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CVE-2026-8078 (GCVE-0-2026-8078)
Vulnerability from cvelistv5 – Published: 2026-06-08 12:06 – Updated: 2026-06-08 13:03
VLAI
Title
Fix stored XSS in global settings change log
Summary
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 in changelog messages that executes in other users' browsers when they view the Activate Changes page or Audit log.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/17992 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.5.0 , < 2.5.0p5
(semver)
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CVE-2026-7765 (GCVE-0-2026-7765)
Vulnerability from cvelistv5 – Published: 2026-06-08 12:06 – Updated: 2026-06-08 13:04
VLAI
Title
User Messages widget leaked issuer messages on shared dashboards
Summary
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 a valid public dashboard share token to read the issuer's personal messages by sending requests to the underlying endpoint, even without a User Messages widget present.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/19815 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.5.0 , < 2.5.0p5
(semver)
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CVE-2026-7186 (GCVE-0-2026-7186)
Vulnerability from cvelistv5 – Published: 2026-06-08 12:05 – Updated: 2026-06-08 13:15
VLAI
Title
Fix stored XSS in URL dashboard widget via dangerous URI schemes
Summary
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 as javascript: that executes scripts in other users' browsers when they view the dashboard.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/17991 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
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(semver)
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CVE-2024-47091 (GCVE-0-2024-47091)
Vulnerability from cvelistv5 – Published: 2026-05-13 08:35 – Updated: 2026-05-13 12:01
VLAI
Title
Privilege escalation via mk_mysql agent plugin on Windows
Summary
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 with write access to a binary referenced by such a service) to execute arbitrary code in the context of the Checkmk agent service, which typically runs as SYSTEM.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-427 - Uncontrolled Search Path Element
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/19198 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p29
(semver)
Affected: 2.3.0 , < 2.3.0p47 (semver) Affected: 2.2.0 (semver) |
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CVE-2026-33457 (GCVE-0-2026-33457)
Vulnerability from cvelistv5 – Published: 2026-04-10 08:31 – Updated: 2026-04-14 13:29
VLAI
Title
Potential livestatus injection in prediction graph page
Summary
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 insufficient sanitization of the service description value.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-140 - Improper Neutralization of Delimiters
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/17990 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.5.0 , < 2.5.0b4
(semver)
Affected: 2.4.0 , < 2.4.0p26 (semver) Affected: 2.3.0 , < 2.3.0p47 (semver) |
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CVE-2026-33456 (GCVE-0-2026-33456)
Vulnerability from cvelistv5 – Published: 2026-04-10 08:31 – Updated: 2026-04-14 13:29
VLAI
Title
Potential livestatus injection in notification test
Summary
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 description.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-140 - Improper Neutralization of Delimiters
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/17989 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.5.0 , < 2.5.0b4
(semver)
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CVE-2026-33455 (GCVE-0-2026-33455)
Vulnerability from cvelistv5 – Published: 2026-04-10 08:30 – Updated: 2026-04-14 13:30
VLAI
Title
Livestatus injection in monitoring quicksearch
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-140 - Improper Neutralization of Delimiters
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/17988 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.5.0 , < 2.5.0b4
(semver)
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CVE-2025-39666 (GCVE-0-2025-39666)
Vulnerability from cvelistv5 – Published: 2026-04-07 12:09 – Updated: 2026-04-07 13:18
VLAI
Title
omd: Local privilege escalation when executing omd commands as root
Summary
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 manipulating files in the site context that are processed when the `omd` administrative command is run by root.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/18891 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.2.0
(semver)
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CVE-2026-3466 (GCVE-0-2026-3466)
Vulnerability from cvelistv5 – Published: 2026-04-07 12:08 – Updated: 2026-04-22 12:26
VLAI
Title
Cross-site scripting in dashlet title
Summary
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 creation privileges to perform stored cross-site scripting (XSS) attacks by tricking a victim into clicking a crafted dashlet title link on a shared dashboard.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://checkmk.com/werk/19033 | vendor-advisory |
| https://checkmk.com/werk/19583 | vendor-advisory |
| https://www.vulncheck.com/advisories/checkmk-stor… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.2.0
(semver)
Affected: 2.3.0 , < 2.3.0p46 (semver) Affected: 2.4.0 , < 2.4.0p25 (semver) Affected: 2.5.0b1 , < 2.5.0 (semver) |
Credits
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CVE-2026-24096 (GCVE-0-2026-24096)
Vulnerability from cvelistv5 – Published: 2026-04-01 10:07 – Updated: 2026-04-01 12:37
VLAI
Title
Insufficient permission validation on multiple REST API Quick Setup endpoints
Summary
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 or obtain sensitive information
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-280 - Improper Handling of Insufficient Permissions or Privileges
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/18989 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.5.0b1 , < 2.5.0b2
(semver)
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Credits
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CVE-2026-20915 (GCVE-0-2026-20915)
Vulnerability from cvelistv5 – Published: 2026-03-31 13:51 – Updated: 2026-03-31 17:15
VLAI
Title
Stored cross-site scripting in Pending Changes sidebar
Summary
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 will execute in the browsers of other users viewing the sidebar.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/19526 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.5.0b1 , < 2.5.0b2
(semver)
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CVE-2026-33276 (GCVE-0-2026-33276)
Vulnerability from cvelistv5 – Published: 2026-03-31 13:44 – Updated: 2026-03-31 15:45
VLAI
Title
XSS in Unified Search via Unescaped Host/Service Names
Summary
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 searches in the Unified Search feature.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/19525 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.5.0b1 , < 2.5.0b2
(semver)
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CVE-2025-64998 (GCVE-0-2025-64998)
Vulnerability from cvelistv5 – Published: 2026-03-24 11:25 – Updated: 2026-03-25 03:55
VLAI
Title
Session hijacking via exposed session signing secret in distributed Checkmk setups
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-522 - Insufficiently Protected Credentials
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/18954 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p23
(semver)
Affected: 2.3.0 , < 2.3.0p45 (semver) Affected: 2.2.0 (semver) |
Credits
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CVE-2026-2859 (GCVE-0-2026-2859)
Vulnerability from cvelistv5 – Published: 2026-03-13 09:40 – Updated: 2026-03-13 15:48
VLAI
Title
Unauthenticated Host Enumeration via Observable Response Discrepancy on Deploy Agent Endpoint
Summary
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Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-204 - Observable Response Discrepancy
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/18994 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p23
(semver)
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CVE-2026-24097 (GCVE-0-2026-24097)
Vulnerability from cvelistv5 – Published: 2026-03-13 09:40 – Updated: 2026-03-13 15:56
VLAI
Title
Authenticated Host Enumeration via Observable Response Discrepancy on Agent Register Existing Endpoint
Summary
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-receiver/register_existing endpoint, which could lead to information disclosure.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-204 - Observable Response Discrepancy
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/18993 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p23
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CVE-2026-3103 (GCVE-0-2026-3103)
Vulnerability from cvelistv5 – Published: 2026-03-04 13:15 – Updated: 2026-03-04 14:07
VLAI
Title
Deletion of passwords via RestApi
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/19041 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p23
(semver)
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CVE-2025-64999 (GCVE-0-2025-64999)
Vulnerability from cvelistv5 – Published: 2026-02-26 10:26 – Updated: 2026-04-14 14:28
VLAI
Title
Cross-site scripting in HTML logs of Synthetic Monitoring test services
Summary
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 Monitoring HTML logs, which can then be accessed via a crafted phishing link.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://checkmk.com/werk/19238 | vendor-advisory |
| https://github.com/sbaresearch/advisories/tree/e7… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p22
(semver)
Affected: 2.3.0 , < 2.3.0p43 (semver) |
Credits
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CVE-2025-65000 (GCVE-0-2025-65000)
Vulnerability from cvelistv5 – Published: 2025-12-18 14:04 – Updated: 2025-12-18 15:28
VLAI
Title
Exposure of SSH Private Keys in Remote Alert Handlers (Linux) Rule
Summary
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. This potentially allowed unauthorized triggering of predefined alert handlers on hosts where the handler was deployed.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-212 - Improper Removal of Sensitive Information Before Storage or Transfer
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/19030 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p18
(semver)
Affected: 2.3.0 (semver) |
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CVE-2025-64997 (GCVE-0-2025-64997)
Vulnerability from cvelistv5 – Published: 2025-12-18 09:11 – Updated: 2025-12-18 14:27
VLAI
Title
Insufficient permission validation when showing agent information
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-280 - Improper Handling of Insufficient Permissions or Privileges
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/18681 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p17
(semver)
Affected: 2.3.0 , < 2.3.0p42 (semver) |
Credits
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CVE-2025-58121 (GCVE-0-2025-58121)
Vulnerability from cvelistv5 – Published: 2025-11-18 15:11 – Updated: 2025-11-18 21:34
VLAI
Title
Insufficient permission validation on multiple REST API endpoints
Summary
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
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-280 - Improper Handling of Insufficient Permissions or Privileges
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/18983 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p16
(semver)
Affected: 2.3.0 (semver) Affected: 2.2.0 (semver) |
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CVE-2025-58122 (GCVE-0-2025-58122)
Vulnerability from cvelistv5 – Published: 2025-11-18 15:11 – Updated: 2025-11-18 21:33
VLAI
Title
Insufficient permission validation when configuring notification parameters
Summary
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 disclosure.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-280 - Improper Handling of Insufficient Permissions or Privileges
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/18982 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p16
(semver)
|
Credits
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CVE-2025-64996 (GCVE-0-2025-64996)
Vulnerability from cvelistv5 – Published: 2025-11-18 15:10 – Updated: 2025-11-18 21:23
VLAI
Title
Overly broad file permissions in the mk_inotify plugin allows reading and manipulating the plugin's output
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-732 - Incorrect Permission Assignment for Critical Resource
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/18570 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p16
(semver)
Affected: 2.3.0 , < 2.3.0p41 (semver) Affected: 2.2.0 (semver) Affected: 2.1.0 (semver) |
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CVE-2025-39663 (GCVE-0-2025-39663)
Vulnerability from cvelistv5 – Published: 2025-10-30 10:43 – Updated: 2025-11-07 16:04
VLAI
Title
Cross Site Scripting through compromised remote site
Summary
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).
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p14
(semver)
Affected: 2.3.0 , < 2.3.0p39 (semver) Affected: 2.2.0 (semver) Affected: 2.1.0 (semver) |
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CVE-2025-39664 (GCVE-0-2025-39664)
Vulnerability from cvelistv5 – Published: 2025-10-09 15:01 – Updated: 2025-11-03 17:42
VLAI
Title
Path-Traversal in report scheduler
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://checkmk.com/werk/17984 | vendor-advisory |
| https://github.com/sbaresearch/advisories/tree/pu… | third-party-advisory |
| http://seclists.org/fulldisclosure/2025/Oct/7 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p13
(semver)
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CVE-2025-32919 (GCVE-0-2025-32919)
Vulnerability from cvelistv5 – Published: 2025-10-09 15:01 – Updated: 2025-11-03 17:32
VLAI
Title
Privilege Escalation in Windows License plugin for Checkmk Windows Agent
Summary
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).
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-427 - Uncontrolled Search Path Element
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://checkmk.com/werk/18207 | vendor-advisory |
| https://github.com/sbaresearch/advisories/tree/pu… | third-party-advisory |
| http://seclists.org/fulldisclosure/2025/Oct/6 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p13
(semver)
Affected: 2.3.0 , < 2.3.0p38 (semver) Affected: 2.2.0 , < 2.2.0p46 (semver) Affected: 2.1.0 (semver) |
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CVE-2025-32916 (GCVE-0-2025-32916)
Vulnerability from cvelistv5 – Published: 2025-10-09 15:00 – Updated: 2025-10-14 14:16
VLAI
Title
Sensitive form data in URL query parameters
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-598 - Use of GET Request Method With Sensitive Query Strings
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/17105 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p13
(semver)
Affected: 2.3.0 , < 2.3.0p38 (semver) Affected: 2.2.0 , < 2.2.0p46 (semver) Affected: 2.1.0 (semver) |
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CVE-2025-32918 (GCVE-0-2025-32918)
Vulnerability from cvelistv5 – Published: 2025-07-04 08:12 – Updated: 2025-07-08 14:20
VLAI
Title
Livestatus injection in autocomplete endpoint
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-140 - Improper Neutralization of Delimiters
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/17987 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p6
(semver)
Affected: 2.3.0 , < 2.3.0p35 (semver) Affected: 2.2.0 , < 2.2.0p44 (semver) Affected: 2.1.0 (semver) |
Credits
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CVE-2025-32915 (GCVE-0-2025-32915)
Vulnerability from cvelistv5 – Published: 2025-05-22 14:16 – Updated: 2025-05-22 14:48
VLAI
Title
Sensitive data exposed during automatic agent updates
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-732 - Incorrect Permission Assignment for Critical Resource
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://checkmk.com/werk/17099 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Checkmk GmbH | Checkmk |
Affected:
2.4.0 , < 2.4.0p1
(semver)
Affected: 2.3.0 , < 2.3.0p32 (semver) Affected: 2.2.0 , < 2.2.0p42 (semver) Affected: 2.1.0 (semver) |
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