CVE-2019-9787

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    CVE-2019-9787

    Published: 14 Mar 2019Last Modified: 8 Jul 2026

    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://lists.debian.org/debian-lts-announce/2019/03/msg00044.html, https://wpvulndb.com/vulnerabilities/9230, http://www.securityfocus.com/bid/107411, 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.debian.org/security/2020/dsa-4677, https://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080b, https://blog.ripstech.com/2019/wordpress-csrf-to-rce/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -18267e68232aa342ad5ac6a15da076831f0cf547

    Affected versions

    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