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    CVE-2017-9781

    A cross site scripting (XSS) vulnerability exists in Check_MK versions 1.4.0x prior to 1.4.0p6, allowing an unauthenticated remote attacker to inject arbitrary HTML or JavaScript via the _username parameter when attempting authentication to webapi.py, which is returned unencoded with content type text/html.

    Published:Jun 21, 2017
    Last Modified:Apr 20, 2025
    EPS:Jun 21, 2017
    EPSS Score:0.004
    CVSS Score:6.1

    Affected Products

    Vendor
    Check Mk Project
    Product
    Check Mk

    Exploits

    https://www.tenable.com/security/research/tra-2017-21https://www.tenable.com/security/research/tra-2017-21

    Related CVEs

    CVE-2014-0243 (CVSS 5.5) — Check_MK through 1.2.5i2p1 allows local users to read arbitrary files via a symlink attack to a file in /var/l…
    CVE-2017-11507 (CVSS 6.1) — A cross site scripting (XSS) vulnerability exists in Check_MK versions 1.2.8x prior to 1.2.8p25 and 1.4.0x pri…
    CVE-2014-2332 (CVSS 5.5) — Check_MK before 1.2.2p3 and 1.2.3x before 1.2.3i5 allows remote authenticated users to delete arbitrary files …
    CVE-2014-2331 (CVSS 8.5) — Check_MK 1.2.2p2, 1.2.2p3, and 1.2.3i5 allows remote authenticated users to execute arbitrary Python code via …
    CVE-2014-2329 (CVSS 3.5) — Multiple cross-site scripting (XSS) vulnerabilities in Check_MK before 1.2.2p3 and 1.2.3x before 1.2.3i5 allow…
    CVE-2014-2330 (CVSS 6.8) — Multiple cross-site request forgery (CSRF) vulnerabilities in the Multisite GUI in Check_MK before 1.2.5i2 all…
    CVE-2014-5338 (CVSS 3.5) — Multiple cross-site scripting (XSS) vulnerabilities in the multisite component in Check_MK before 1.2.4p4 and …
    CVE-2014-5339 (CVSS 4.9) — Check_MK before 1.2.4p4 and 1.2.5 before 1.2.5i4 allows remote authenticated users to write check_mk config fi…
    CVE-2014-5340 (CVSS 9.3) — The wato component in Check_MK before 1.2.4p4 and 1.2.5 before 1.2.5i4 uses the pickle Python module unsafely,…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High