CVE-2026-119977

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    CVE-2026-119977

    Published: 31 Oct 2026Last Modified: 8 Nov 2026

    Summary: WordPress Core 4.7.0 - 7.1.3 - Unauthenticated Upgrade-Window Staged-Installer Remote Code Execution

    Details: WordPress Core is vulnerable to Remote Code Execution in versions 4.7 through 7.1.3. This is due to predictable, web-accessible staging paths used during full-package core upgrades. This makes it possible for unauthenticated attackers to execute code on the server during the upgrade window.

    References: https://core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/class-core-upgrader.php#L162, https://core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/class-wp-upgrader.php#L378, https://core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/update-core.php#L1549, https://core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/setup-config.php#L282, https://core.trac.wordpress.org/browser/tags/7.1.4/src/wp-admin/includes/class-wp-upgrader.php#L346, https://core.trac.wordpress.org/browser/tags/7.1.4/src/wp-admin/includes/update-core.php#L1545, https://wordpress.org/news/2026/10/wordpress-7-1-4/, https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-119977, https://www.wordfence.com/threat-intel/vulnerabilities/id/4b4da0cf-d9f4-47c4-a0e8-6c4dc5a6f250?source=cve, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/119xxx/CVE-2026-119977.json, https://nvd.nist.gov/vuln/detail/CVE-2026-119977, https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-core/wordpress-core-470-713-unauthenticated-upgrade-window-staged-installer-remote-code-execution

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 14247ee4302378d292863865c643abe99bbfe3c7
    Fixed -56c2652dc905a83ff6b913c4aeee7a17b5017f60

    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
    CVE-2026-119977 | CVE-DB