{"id":"UBUNTU-CVE-2020-28039","details":"is_protected_meta in wp-includes/meta.php in WordPress before 5.5.2 allows arbitrary file deletion because it does not properly determine whether a meta key is considered protected.","modified":"2026-05-20T16:06:23.213356218Z","published":"2020-11-02T21:15:00Z","upstream":["CVE-2020-28039"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-28039"},{"type":"REPORT","url":"https://github.com/WordPress/wordpress-develop/commit/d5ddd6d4be1bc9fd16b7796842e6fb26315705ad"},{"type":"REPORT","url":"https://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/"},{"type":"REPORT","url":"https://wpscan.com/vulnerability/10452"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-28039"}],"affected":[{"package":{"name":"wordpress","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/wordpress?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3+dfsg-1","4.3.1+dfsg-1","4.4+dfsg-1","4.4.1+dfsg-1","4.4.2+dfsg-1","4.4.2+dfsg-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"wordpress","binary_version":"4.4.2+dfsg-1ubuntu1"},{"binary_version":"4.4.2+dfsg-1ubuntu1","binary_name":"wordpress-l10n"},{"binary_version":"4.4.2+dfsg-1ubuntu1","binary_name":"wordpress-theme-twentyfifteen"},{"binary_version":"4.4.2+dfsg-1ubuntu1","binary_name":"wordpress-theme-twentyfourteen"},{"binary_name":"wordpress-theme-twentysixteen","binary_version":"4.4.2+dfsg-1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-28039.json"}},{"package":{"name":"wordpress","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/wordpress?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.8.2+dfsg-2","4.8.3+dfsg-1","4.9.1+dfsg-1","4.9.2+dfsg-1","4.9.4+dfsg-1","4.9.5+dfsg1-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.9.5+dfsg1-1","binary_name":"wordpress"},{"binary_version":"4.9.5+dfsg1-1","binary_name":"wordpress-l10n"},{"binary_name":"wordpress-theme-twentyfifteen","binary_version":"4.9.5+dfsg1-1"},{"binary_version":"4.9.5+dfsg1-1","binary_name":"wordpress-theme-twentyseventeen"},{"binary_name":"wordpress-theme-twentysixteen","binary_version":"4.9.5+dfsg1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-28039.json"}},{"package":{"name":"wordpress","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/wordpress?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.2.2+dfsg1-1","5.2.4+dfsg1-1","5.3.2+dfsg1-1","5.3.2+dfsg1-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"wordpress","binary_version":"5.3.2+dfsg1-1ubuntu1"},{"binary_name":"wordpress-l10n","binary_version":"5.3.2+dfsg1-1ubuntu1"},{"binary_name":"wordpress-theme-twentynineteen","binary_version":"5.3.2+dfsg1-1ubuntu1"},{"binary_version":"5.3.2+dfsg1-1ubuntu1","binary_name":"wordpress-theme-twentyseventeen"},{"binary_version":"5.3.2+dfsg1-1ubuntu1","binary_name":"wordpress-theme-twentysixteen"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-28039.json"}},{"package":{"name":"wordpress","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/wordpress?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.7.1+dfsg1-2ubuntu1","5.8.1+dfsg1-2ubuntu1","5.8.2+dfsg1-1ubuntu1","5.8.3+dfsg1-1ubuntu1","5.8.3+dfsg1-1ubuntu1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"wordpress","binary_version":"5.8.3+dfsg1-1ubuntu1.1"},{"binary_version":"5.8.3+dfsg1-1ubuntu1.1","binary_name":"wordpress-l10n"},{"binary_version":"5.8.3+dfsg1-1ubuntu1.1","binary_name":"wordpress-theme-twentynineteen"},{"binary_version":"5.8.3+dfsg1-1ubuntu1.1","binary_name":"wordpress-theme-twentytwenty"},{"binary_version":"5.8.3+dfsg1-1ubuntu1.1","binary_name":"wordpress-theme-twentytwentyone"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-28039.json"}},{"package":{"name":"wordpress","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/wordpress?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.2+dfsg1-1ubuntu1","6.4.3+dfsg1-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"6.4.3+dfsg1-1ubuntu1","binary_name":"wordpress"},{"binary_version":"6.4.3+dfsg1-1ubuntu1","binary_name":"wordpress-l10n"},{"binary_version":"6.4.3+dfsg1-1ubuntu1","binary_name":"wordpress-theme-twentytwentyfour"},{"binary_version":"6.4.3+dfsg1-1ubuntu1","binary_name":"wordpress-theme-twentytwentythree"},{"binary_name":"wordpress-theme-twentytwentytwo","binary_version":"6.4.3+dfsg1-1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-28039.json"}},{"package":{"name":"wordpress","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/wordpress?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.7.2+dfsg1-1.1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"6.7.2+dfsg1-1.1ubuntu1","binary_name":"wordpress"},{"binary_name":"wordpress-l10n","binary_version":"6.7.2+dfsg1-1.1ubuntu1"},{"binary_version":"6.7.2+dfsg1-1.1ubuntu1","binary_name":"wordpress-theme-twentytwentyfive"},{"binary_name":"wordpress-theme-twentytwentyfour","binary_version":"6.7.2+dfsg1-1.1ubuntu1"},{"binary_version":"6.7.2+dfsg1-1.1ubuntu1","binary_name":"wordpress-theme-twentytwentythree"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-28039.json"}},{"package":{"name":"wordpress","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/wordpress?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.7.2+dfsg1-1.1ubuntu1","6.7.2+dfsg1-1.1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"6.7.2+dfsg1-1.1ubuntu2","binary_name":"wordpress"},{"binary_version":"6.7.2+dfsg1-1.1ubuntu2","binary_name":"wordpress-l10n"},{"binary_version":"6.7.2+dfsg1-1.1ubuntu2","binary_name":"wordpress-theme-twentytwentyfive"},{"binary_version":"6.7.2+dfsg1-1.1ubuntu2","binary_name":"wordpress-theme-twentytwentyfour"},{"binary_name":"wordpress-theme-twentytwentythree","binary_version":"6.7.2+dfsg1-1.1ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-28039.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}