Vulnerability Database

316,080

Total vulnerabilities in the database

CVE-2025-39663

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).

  • Published: Oct 30, 2025
  • Updated: Dec 4, 2025
  • CVE: CVE-2025-39663
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8.4
  • AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H

CWEs:

OWASP TOP 10:

Software From Fixed in
checkmk / checkmk 2.0.0 2.3.0
checkmk / checkmk 2.3.0 2.3.0.x
checkmk / checkmk 2.3.0-p1 2.3.0-p1.x
checkmk / checkmk 2.3.0-p10 2.3.0-p10.x
checkmk / checkmk 2.3.0-p11 2.3.0-p11.x
checkmk / checkmk 2.3.0-p12 2.3.0-p12.x
checkmk / checkmk 2.3.0-p13 2.3.0-p13.x
checkmk / checkmk 2.3.0-p14 2.3.0-p14.x
checkmk / checkmk 2.3.0-p15 2.3.0-p15.x
checkmk / checkmk 2.3.0-p16 2.3.0-p16.x
checkmk / checkmk 2.3.0-p17 2.3.0-p17.x
checkmk / checkmk 2.3.0-p18 2.3.0-p18.x
checkmk / checkmk 2.3.0-p19 2.3.0-p19.x
checkmk / checkmk 2.3.0-p2 2.3.0-p2.x
checkmk / checkmk 2.3.0-p20 2.3.0-p20.x
checkmk / checkmk 2.3.0-p21 2.3.0-p21.x
checkmk / checkmk 2.3.0-p22 2.3.0-p22.x
checkmk / checkmk 2.3.0-p23 2.3.0-p23.x
checkmk / checkmk 2.3.0-p24 2.3.0-p24.x
checkmk / checkmk 2.3.0-p25 2.3.0-p25.x
checkmk / checkmk 2.3.0-p26 2.3.0-p26.x
checkmk / checkmk 2.3.0-p27 2.3.0-p27.x
checkmk / checkmk 2.3.0-p28 2.3.0-p28.x
checkmk / checkmk 2.3.0-p29 2.3.0-p29.x
checkmk / checkmk 2.3.0-p3 2.3.0-p3.x
checkmk / checkmk 2.3.0-p30 2.3.0-p30.x
checkmk / checkmk 2.3.0-p31 2.3.0-p31.x
checkmk / checkmk 2.3.0-p32 2.3.0-p32.x
checkmk / checkmk 2.3.0-p33 2.3.0-p33.x
checkmk / checkmk 2.3.0-p34 2.3.0-p34.x
checkmk / checkmk 2.3.0-p35 2.3.0-p35.x
checkmk / checkmk 2.3.0-p36 2.3.0-p36.x
checkmk / checkmk 2.3.0-p37 2.3.0-p37.x
checkmk / checkmk 2.3.0-p38 2.3.0-p38.x
checkmk / checkmk 2.3.0-p4 2.3.0-p4.x
checkmk / checkmk 2.3.0-p5 2.3.0-p5.x
checkmk / checkmk 2.3.0-p6 2.3.0-p6.x
checkmk / checkmk 2.3.0-p7 2.3.0-p7.x
checkmk / checkmk 2.3.0-p8 2.3.0-p8.x
checkmk / checkmk 2.3.0-p9 2.3.0-p9.x
checkmk / checkmk 2.4.0 2.4.0.x
checkmk / checkmk 2.4.0-p1 2.4.0-p1.x
checkmk / checkmk 2.4.0-p10 2.4.0-p10.x
checkmk / checkmk 2.4.0-p11 2.4.0-p11.x
checkmk / checkmk 2.4.0-p12 2.4.0-p12.x
checkmk / checkmk 2.4.0-p13 2.4.0-p13.x
checkmk / checkmk 2.4.0-p2 2.4.0-p2.x
checkmk / checkmk 2.4.0-p3 2.4.0-p3.x
checkmk / checkmk 2.4.0-p4 2.4.0-p4.x
checkmk / checkmk 2.4.0-p5 2.4.0-p5.x
checkmk / checkmk 2.4.0-p6 2.4.0-p6.x
checkmk / checkmk 2.4.0-p7 2.4.0-p7.x
checkmk / checkmk 2.4.0-p9 2.4.0-p9.x