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Advisories

Checkmk Stored XSS in Dashlet Title

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severity
high
date
Affecting

  • v2.2.0 (EOL)

  • v2.3.0 < 2.3.0p46

  • v2.4.0 < 2.4.0p25

  • v2.5.0 (beta) < 2.5.0b3

CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS
8.5
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:L/SA:N
Credit
Alex Williams (Pellera Technologies)
Description
Checkmk versions 2.2.0 (EOL), 2.3.0 before 2.3.0p46, 2.4.0 before 2.4.0p25, and 2.5.0 (beta) before 2.5.0b3 contain a stored cross-site scripting vulnerability in dashboard dashlet title links due to insufficient sanitization that allows attackers with dashboard creation privileges to inject malicious scripts. Attackers can craft dashlet title links containing XSS payloads that execute in victims' browsers when they click the link on a shared dashboard, potentially stealing session tokens or performing unauthorized actions.

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