Vulnerability Details CVE-2021-40906
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 49.1%
CVSS Severity
CVSS v3 Score 6.1
CVSS v2 Score 4.3
References
Products affected by CVE-2021-40906
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cpe:2.3:a:checkmk:checkmk:1.5.0
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cpe:2.3:a:checkmk:checkmk:1.6.0
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cpe:2.3:a:tribe29:checkmk:1.6.0b10
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cpe:2.3:a:tribe29:checkmk:1.6.0b11
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cpe:2.3:a:tribe29:checkmk:1.6.0p10
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cpe:2.3:a:tribe29:checkmk:1.6.0p17
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cpe:2.3:a:tribe29:checkmk:1.6.0p18