CVE-2026-9549
Essential information
- Published
- 08/06/2026 13:16
- Modified
- 08/06/2026 15:53
- Author
- —
- Creator
- —
- CVSS
- 4.8 MEDIUM (v3) 4.8 MEDIUM (v4.0)
- CISA KEV
- No
- CWE
- —
- CVSS vector
-
—
—
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS metrics
- Access vector
- —
- Access complexity
- —
- Authentication
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploitability
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- —
- Attack complexity
- —
- Privileges required
- —
- User interaction
- —
- Scope
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploit code maturity
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- NETWORK
- Attack complexity
- LOW
- Attack requirements
- NONE
- Privileges required
- HIGH
- User interaction
- PASSIVE
- Confidentiality (V)
- NONE
- Confidentiality (S)
- NONE
- Integrity (V)
- LOW
- Integrity (S)
- LOW
- Availability (V)
- NONE
- Availability (S)
- NONE
- Exploit maturity
- NOT_DEFINED
Description
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.
NVD status
- Status
- Analyzed — CVE has been recently published to the CVE List and has been received by the NVD.
- Source
- [email protected]
- NVD
- View on NVD
Affected products (CPE)
| Product | CPE |
|---|---|
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:-:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:b1:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:b2:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:b3:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:b4:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:b5:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:b6:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:b7:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:b8:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:i1:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p1:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p10:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p11:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p12:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p13:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p14:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p15:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p16:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p17:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p18:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p19:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p2:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p20:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p21:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p22:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p23:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p24:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p25:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p26:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p27:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p28:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p29:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p3:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p30:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p31:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p32:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p33:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p34:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p35:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p36:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p37:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p38:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p39:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p4:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p40:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p41:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p42:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p43:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p44:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p45:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p46:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p47:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p5:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p6:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p7:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p8:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.2.0:p9:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:-:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:b1:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:b2:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:b3:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:b4:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:b5:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:b6:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p1:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p10:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p11:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p12:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p13:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p14:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p15:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p16:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p17:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p18:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p19:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p2:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p20:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p21:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p22:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p23:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p24:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p25:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p26:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p27:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p28:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p29:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p3:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p30:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p31:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p32:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p33:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p34:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p35:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p36:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p37:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p38:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p39:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p4:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p40:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p41:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p42:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p43:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p44:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p45:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p46:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p47:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p5:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p6:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p7:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p8:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.3.0:p9:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:*:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:-:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:b1:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:b2:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:b3:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:b4:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:b5:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:b6:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p1:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p10:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p11:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p12:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p13:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p14:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p15:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p16:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p17:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p18:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p19:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p2:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p20:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p21:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p22:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p23:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p24:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p25:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p26:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p27:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p28:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p29:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p3:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p30:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p4:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p5:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p6:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p7:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p8:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.4.0:p9:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.5.0:-:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.5.0:b1:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.5.0:b2:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.5.0:b3:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.5.0:p1:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.5.0:p2:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.5.0:p3:*:*:*:*:*:* |
| checkmk / checkmk | cpe:2.3:a:checkmk:checkmk:2.5.0:p4:*:*:*:*:*:* |