CVE-2019-9955

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    CVE-2019-9955

    Published: 22 Apr 2019Last Modified: 10 Mar 2026

    Summary:

    Details: On Zyxel ATP200, ATP500, ATP800, USG20-VPN, USG20W-VPN, USG40, USG40W, USG60, USG60W, USG110, USG210, USG310, USG1100, USG1900, USG2200-VPN, ZyWALL 110, ZyWALL 310, ZyWALL 1100 devices, the security firewall login page is vulnerable to Reflected XSS via the unsanitized 'mp_idx' parameter.

    References: , http://seclists.org/fulldisclosure/2019/Apr/22, https://www.zyxel.com/support/reflected-cross-site-scripting-vulnerability-of-firewalls.shtml, https://www.securitymetrics.com/blog/Zyxel-Devices-Vulnerable-Cross-Site-Scripting-Login-page, http://packetstormsecurity.com/files/152525/Zyxel-ZyWall-Cross-Site-Scripting.html, https://www.exploit-db.com/exploits/46706/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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