CheckMK Raw Edition software (versions 1.5.0 to 1.6.0) does not sanitise the input of a…
Priority LOW 29CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
CheckMK Raw Edition software (versions 1.5.0 to 1.6.0) does not sanitise the input of a web service parameter that is in an unauthenticated zone. This Reflected XSS allows an attacker to open a backdoor on the device with HTML content and interpreted by the browser (such as JavaScript or other client-side scripts) or to steal the session cookies of a user who has previously authenticated via a man in the middle. Successful exploitation requires access to the web service resource without authentication.
Why it matters now
EPSS 0.00998 62nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 37
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:* | 1.5.0 to before 1.6.0 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:-:*:*:*:*:*:* | 1.6.0 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:b1:*:*:*:*:*:* | 1.6.0 b1 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:b10:*:*:*:*:*:* | 1.6.0 b10 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:b12:*:*:*:*:*:* | 1.6.0 b12 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:b3:*:*:*:*:*:* | 1.6.0 b3 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:b4:*:*:*:*:*:* | 1.6.0 b4 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:b5:*:*:*:*:*:* | 1.6.0 b5 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:b9:*:*:*:*:*:* | 1.6.0 b9 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p1:*:*:*:*:*:* | 1.6.0 p1 | Vulnerable | Checkmk GmbH |
- cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:* Versions 1.5.0 to before 1.6.0 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:-:*:*:*:*:*:* Versions 1.6.0 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:b1:*:*:*:*:*:* Versions 1.6.0 b1 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:b10:*:*:*:*:*:* Versions 1.6.0 b10 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:b12:*:*:*:*:*:* Versions 1.6.0 b12 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:b3:*:*:*:*:*:* Versions 1.6.0 b3 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:b4:*:*:*:*:*:* Versions 1.6.0 b4 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:b5:*:*:*:*:*:* Versions 1.6.0 b5 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:b9:*:*:*:*:*:* Versions 1.6.0 b9 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p1:*:*:*:*:*:* Versions 1.6.0 p1 Vulnerable ·Checkmk GmbH
Show 27 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:checkmk:checkmk:1.6.0:p10:*:*:*:*:*:* | 1.6.0 p10 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p11:*:*:*:*:*:* | 1.6.0 p11 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p12:*:*:*:*:*:* | 1.6.0 p12 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p13:*:*:*:*:*:* | 1.6.0 p13 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p14:*:*:*:*:*:* | 1.6.0 p14 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p15:*:*:*:*:*:* | 1.6.0 p15 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p16:*:*:*:*:*:* | 1.6.0 p16 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p19:*:*:*:*:*:* | 1.6.0 p19 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p2:*:*:*:*:*:* | 1.6.0 p2 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p20:*:*:*:*:*:* | 1.6.0 p20 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p21:*:*:*:*:*:* | 1.6.0 p21 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p22:*:*:*:*:*:* | 1.6.0 p22 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p23:*:*:*:*:*:* | 1.6.0 p23 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p24:*:*:*:*:*:* | 1.6.0 p24 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p25:*:*:*:*:*:* | 1.6.0 p25 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p3:*:*:*:*:*:* | 1.6.0 p3 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p4:*:*:*:*:*:* | 1.6.0 p4 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p5:*:*:*:*:*:* | 1.6.0 p5 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p6:*:*:*:*:*:* | 1.6.0 p6 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p7:*:*:*:*:*:* | 1.6.0 p7 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p8:*:*:*:*:*:* | 1.6.0 p8 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:checkmk:checkmk:1.6.0:p9:*:*:*:*:*:* | 1.6.0 p9 | Vulnerable | Checkmk GmbH |
| cpe:2.3:a:tribe29:checkmk:1.6.0b10:*:*:*:*:*:*:* | 1.6.0b10 | Vulnerable | Tribe29 |
| cpe:2.3:a:tribe29:checkmk:1.6.0b11:*:*:*:*:*:*:* | 1.6.0b11 | Vulnerable | Tribe29 |
| cpe:2.3:a:tribe29:checkmk:1.6.0p10:*:*:*:*:*:*:* | 1.6.0p10 | Vulnerable | Tribe29 |
| cpe:2.3:a:tribe29:checkmk:1.6.0p17:*:*:*:*:*:*:* | 1.6.0p17 | Vulnerable | Tribe29 |
| cpe:2.3:a:tribe29:checkmk:1.6.0p18:*:*:*:*:*:*:* | 1.6.0p18 | Vulnerable | Tribe29 |
- cpe:2.3:a:checkmk:checkmk:1.6.0:p10:*:*:*:*:*:* Versions 1.6.0 p10 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p11:*:*:*:*:*:* Versions 1.6.0 p11 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p12:*:*:*:*:*:* Versions 1.6.0 p12 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p13:*:*:*:*:*:* Versions 1.6.0 p13 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p14:*:*:*:*:*:* Versions 1.6.0 p14 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p15:*:*:*:*:*:* Versions 1.6.0 p15 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p16:*:*:*:*:*:* Versions 1.6.0 p16 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p19:*:*:*:*:*:* Versions 1.6.0 p19 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p2:*:*:*:*:*:* Versions 1.6.0 p2 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p20:*:*:*:*:*:* Versions 1.6.0 p20 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p21:*:*:*:*:*:* Versions 1.6.0 p21 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p22:*:*:*:*:*:* Versions 1.6.0 p22 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p23:*:*:*:*:*:* Versions 1.6.0 p23 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p24:*:*:*:*:*:* Versions 1.6.0 p24 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p25:*:*:*:*:*:* Versions 1.6.0 p25 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p3:*:*:*:*:*:* Versions 1.6.0 p3 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p4:*:*:*:*:*:* Versions 1.6.0 p4 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p5:*:*:*:*:*:* Versions 1.6.0 p5 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p6:*:*:*:*:*:* Versions 1.6.0 p6 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p7:*:*:*:*:*:* Versions 1.6.0 p7 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p8:*:*:*:*:*:* Versions 1.6.0 p8 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:checkmk:checkmk:1.6.0:p9:*:*:*:*:*:* Versions 1.6.0 p9 Vulnerable ·Checkmk GmbH
- cpe:2.3:a:tribe29:checkmk:1.6.0b10:*:*:*:*:*:*:* Versions 1.6.0b10 Vulnerable ·Tribe29
- cpe:2.3:a:tribe29:checkmk:1.6.0b11:*:*:*:*:*:*:* Versions 1.6.0b11 Vulnerable ·Tribe29
- cpe:2.3:a:tribe29:checkmk:1.6.0p10:*:*:*:*:*:*:* Versions 1.6.0p10 Vulnerable ·Tribe29
- cpe:2.3:a:tribe29:checkmk:1.6.0p17:*:*:*:*:*:*:* Versions 1.6.0p17 Vulnerable ·Tribe29
- cpe:2.3:a:tribe29:checkmk:1.6.0p18:*:*:*:*:*:*:* Versions 1.6.0p18 Vulnerable ·Tribe29
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-40906
- 2026-10-03 Alias added: GHSA-jv73-q4rg-p7qh
References
Sources
- CVE-2021-40906 · CVE Program
- CVE-2021-40906 · NVD
- FIRST EPSS
- GHSA-jv73-q4rg-p7qh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences