GHSA-958r-g534-ccmr

    Dashboard / Vulnerabilities / GHSA-958r-g534-ccmr

    GHSA-958r-g534-ccmr

    Published: 5 Jul 2019Last Modified: 19 Feb 2024
    Aliases:
    CVE-2019-9845

    Summary: MadsKristensen.AspNetCore.Miniblog subject to Improper Input Validation

    Details: madskristensen Miniblog.Core through 2019-01-16 allows remote attackers to execute arbitrary ASPX code via an IMG element with a data: URL, because SaveFilesToDisk in Controllers/BlogController.cs writes a decoded base64 string to a file without validating the extension.

    References: https://nvd.nist.gov/vuln/detail/CVE-2019-9845, https://github.com/advisories/GHSA-958r-g534-ccmr, https://github.com/madskristensen/Miniblog.Core, https://github.com/madskristensen/Miniblog.Core/blob/master/src/Controllers/BlogController.cs#L142, https://rastating.github.io/miniblog-remote-code-execution

    Affected packages

    Package

    Name: MadsKristensen.AspNetCore.Miniblog

    Purl: pkg:nuget/MadsKristensen.AspNetCore.Miniblog

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.0.0
    1.0.1
    1.0.2
    1.0.3

    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