CVE-2021-40102

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    CVE-2021-40102

    Published: 24 Sept 2021Last Modified: 9 Jul 2026

    Summary:

    Details: An issue was discovered in Concrete CMS through 8.5.5. Arbitrary File deletion can occur via PHAR deserialization in is_dir (PHP Object Injection associated with the __wakeup magic method).

    References: https://documentation.concretecms.org/developers/introduction/version-history/856-release-notes, https://hackerone.com/reports/921288

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    8.5.5
    8.5.4
    8.5.3
    8.5.2
    8.5.1
    8.5.0

    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-2021-40102 | CVE-DB