CVE-2020-20691

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    CVE-2020-20691

    Published: 27 Sept 2021Last Modified: 8 Jul 2026

    Summary:

    Details: An issue in Monstra CMS v3.0.4 allows attackers to execute arbitrary web scripts or HTML via bypassing the file extension filter and uploading crafted HTML files.

    References: https://github.com/monstra-cms/monstra/issues/461

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 81bad8b6649253bd972ac4158816189d38366216
    Fixed -None

    Affected versions

    3.0.4

    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
    CVE-2020-20691 | CVE-DB