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CVE-2026-8078 Details
Description
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.
A stored cross-site scripting vulnerability has been identified in Checkmk versions prior to 2.5.0p5, prior to 2.4.0p31, prior to 2.3.0p48, and all 2.2.0 versions. This vulnerability allows an administrator with the ability to change global settings to inject malicious HTML or JavaScript into changelog messages. The injected script executes in the browsers of other users when they access the Activate Changes page or the Audit log.
Users can upgrade to Checkmk versions 2.5.0p5, 2.4.0p31, 2.3.0p48, or 2.2.0 (EOL) to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 8, 2026Exploitation: NoneAutomatable: NoTechnical Impact: Partial
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://checkmk.com/werk/17992 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| checkmk checkmk | 2.2.0 - 2.2.0 b1 2.2.0 b2 2.2.0 b3 2.2.0 b4 2.2.0 b5 2.2.0 b6 2.2.0 b7 2.2.0 b8 2.2.0 i1 2.2.0 p1 2.2.0 p10 2.2.0 p11 2.2.0 p12 2.2.0 p13 2.2.0 p14 2.2.0 p15 2.2.0 p16 2.2.0 p17 2.2.0 p18 2.2.0 p19 2.2.0 p2 2.2.0 p20 2.2.0 p21 2.2.0 p22 2.2.0 p23 2.2.0 p24 2.2.0 p25 2.2.0 p26 2.2.0 p27 2.2.0 p28 2.2.0 p29 2.2.0 p3 2.2.0 p30 2.2.0 p31 2.2.0 p32 2.2.0 p33 2.2.0 p34 2.2.0 p35 2.2.0 p36 2.2.0 p37 2.2.0 p38 2.2.0 p39 2.2.0 p4 2.2.0 p40 2.2.0 p41 2.2.0 p42 2.2.0 p43 2.2.0 p44 2.2.0 p45 2.2.0 p46 2.2.0 p47 2.2.0 p5 2.2.0 p6 2.2.0 p7 2.2.0 p8 2.2.0 p9 2.3.0 - 2.3.0 b1 2.3.0 b2 2.3.0 b3 2.3.0 b4 2.3.0 b5 2.3.0 b6 2.3.0 p1 2.3.0 p10 2.3.0 p11 2.3.0 p12 2.3.0 p13 2.3.0 p14 2.3.0 p15 2.3.0 p16 2.3.0 p17 2.3.0 p18 2.3.0 p19 2.3.0 p2 2.3.0 p20 2.3.0 p21 2.3.0 p22 2.3.0 p23 2.3.0 p24 2.3.0 p25 2.3.0 p26 2.3.0 p27 2.3.0 p28 2.3.0 p29 2.3.0 p3 2.3.0 p30 2.3.0 p31 2.3.0 p32 2.3.0 p33 2.3.0 p34 2.3.0 p35 2.3.0 p36 2.3.0 p37 2.3.0 p38 2.3.0 p39 2.3.0 p4 2.3.0 p40 2.3.0 p41 2.3.0 p42 2.3.0 p43 2.3.0 p44 2.3.0 p45 2.3.0 p46 2.3.0 p47 2.3.0 p5 2.3.0 p6 2.3.0 p7 2.3.0 p8 2.3.0 p9 2.4.0 2.4.0 - 2.4.0 b1 2.4.0 b2 2.4.0 b3 2.4.0 b4 2.4.0 b5 2.4.0 b6 2.4.0 p1 2.4.0 p10 2.4.0 p11 2.4.0 p12 2.4.0 p13 2.4.0 p14 2.4.0 p15 2.4.0 p16 2.4.0 p17 2.4.0 p18 2.4.0 p19 2.4.0 p2 2.4.0 p20 2.4.0 p21 2.4.0 p22 2.4.0 p23 2.4.0 p24 2.4.0 p25 2.4.0 p26 2.4.0 p27 2.4.0 p28 2.4.0 p29 2.4.0 p3 2.4.0 p30 2.4.0 p4 2.4.0 p5 2.4.0 p6 2.4.0 p7 2.4.0 p8 2.4.0 p9 2.5.0 - 2.5.0 b1 2.5.0 b2 2.5.0 b3 2.5.0 p1 2.5.0 p2 2.5.0 p3 2.5.0 p4 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 8, 2026 | Initial Analysis | [email protected] |
| Jun 8, 2026 | New CVE Received | [email protected] |