UBUNTU-CVE-2019-9787

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    UBUNTU-CVE-2019-9787

    Published: 14 Mar 2019Last Modified: 24 Oct 2025
    Upstream:
    CVE-2019-9787

    Summary:

    Details: WordPress before 5.1.1 does not properly filter comment content, leading to Remote Code Execution by unauthenticated users in a default configuration. This occurs because CSRF protection is mishandled, and because Search Engine Optimization of A elements is performed incorrectly, leading to XSS. The XSS results in administrative access, which allows arbitrary changes to .php files. This is related to wp-admin/includes/ajax-actions.php and wp-includes/comment.php.

    References: https://ubuntu.com/security/CVE-2019-9787, https://blog.ripstech.com/2019/wordpress-csrf-to-rce/, https://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080b, https://wordpress.org/news/2019/03/wordpress-5-1-1-security-and-maintenance-release/, https://wordpress.org/support/wordpress-version/version-5-1-1/, https://www.cve.org/CVERecord?id=CVE-2019-9787

    Affected packages

    Package

    Name: wordpress

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-1ubuntu1?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.3+dfsg-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