CVE-2020-29556

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    CVE-2020-29556

    Published: 15 Mar 2021Last Modified: 7 Aug 2026

    Summary:

    Details: The Backup functionality in Grav CMS through 1.7.0-rc.17 allows an authenticated attacker to read arbitrary local files on the underlying server by exploiting a path-traversal technique. (This vulnerability can also be exploited by an unauthenticated attacker due to a lack of CSRF protection.)

    References: https://blog.bssi.fr/cve-2020-29553-cve-2020-29555-cve-2020-29556-multiple-vulnerabilities-within-cms-grav/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -916b7cfc44d4d1e153cf5752c908124abe3167ef

    Affected versions

    1.7.0-rc.20
    1.7.0-rc.19
    1.7.0-rc.18
    1.7.0-rc.17
    1.7.0-rc.15
    1.7.0-rc.14
    1.7.0-rc.13
    1.7.0-rc.12
    1.7.0-rc.10
    1.7.0-rc.9
    1.7.0-rc.8
    1.7.0-rc.7
    1.7.0-rc.6
    1.7.0-rc.5
    1.7.0-rc.4
    1.7.0-rc.3
    1.7.0-rc.2
    1.7.0-rc.1
    1.7.0-beta.10
    1.7.0-beta.9
    1.7.0-beta.8
    1.7.0-beta.7
    1.7.0-beta.6
    1.7.0-beta.5
    1.7.0-beta.4
    1.7.0-beta.3
    1.7.0-beta.2
    1.7.0-beta.1

    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-2020-29556 | CVE-DB