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    CVE-2021-32706

    Pi-hole's Web interface provides a central location to manage a Pi-hole instance and review performance statistics. Prior to Pi-hole Web interface version 5.5.1, the `validDomainWildcard` preg_match filter allows a malicious character through that can be used to execute code, list directories, and overwrite sensitive files. The issue lies in the fact that one of the periods is not escaped, allowing any character to be used in its place. A patch for this vulnerability was released in version 5.5.1.

    Published:Aug 4, 2021
    Last Modified:Nov 21, 2024
    EPS:Aug 4, 2021
    EPSS Score:0.59444
    CVSS Score:7.6

    Affected Products

    Vendor
    Pi-hole
    Product
    Pi-hole

    Exploits

    https://github.com/pi-hole/AdminLTE/security/advisories/GHSA-5cm9-6p3m-v259https://github.com/pi-hole/AdminLTE/security/advisories/GHSA-5cm9-6p3m-v259

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    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