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    CVE-2016-6851

    An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5. Script code can be provided as parameter to the OX Guard guest reader web application. This allows cross-site scripting attacks against arbitrary users since no prior authentication is needed. Malicious script code can be executed within a user's context. This can lead to session hijacking or triggering unwanted actions via the web interface (sending mail, deleting data etc.) in case the user has an active session on the same domain already.

    Published:Dec 15, 2016
    Last Modified:Apr 12, 2025
    EPS:Dec 15, 2016
    EPSS Score:0.01374
    CVSS Score:6.1

    Affected Products

    Vendor
    Open-xchange
    Product
    Ox Guard

    Exploits

    http://packetstormsecurity.com/files/138701/Open-Xchange-Guard-2.4.2-Cross-Site-Scripting.htmlhttps://www.exploit-db.com/exploits/40377/http://packetstormsecurity.com/files/138701/Open-Xchange-Guard-2.4.2-Cross-Site-Scripting.htmlhttps://www.exploit-db.com/exploits/40377/https://www.exploit-db.com/exploits/40377

    Related CVEs

    CVE-2023-26456 (CVSS 5.4) — Users were able to set an arbitrary "product name" for OX Guard. The chosen value was not sufficiently sanitiz…
    CVE-2020-28944 (CVSS 7.5) — OX Guard 2.10.4 and earlier allows a Denial of Service via a WKS server that responds slowly or with a large a…
    CVE-2020-9426 (CVSS 6.1) — OX Guard 2.10.3 and earlier allows XSS.…
    CVE-2020-9427 (CVSS 5) — OX Guard 2.10.3 and earlier allows SSRF.…
    CVE-2018-10986 (CVSS 8.8) — OX Guard 2.8.0 has CSRF.…
    CVE-2016-6853 (CVSS 6.1) — An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5. Script code and references to external web…
    CVE-2016-6854 (CVSS 6.1) — An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5. Script code which got injected to a mail w…
    CVE-2016-4028 (CVSS 7.5) — An issue was discovered in Open-Xchange OX Guard before 2.4.0-rev8. OX Guard uses an authentication token to i…
    CVE-2015-8542 (CVSS 8.8) — An issue was discovered in Open-Xchange Guard before 2.2.0-rev8. The "getprivkeybyid" API call is used to down…
    CVE-2015-7385 (CVSS 4.3) — Cross-site scripting (XSS) vulnerability in Open-Xchange OX Guard before 2.0.0-rev11 allows remote attackers t…

    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