{"id":"CVE-2021-39203","aliases":["BIT-wordpress-2021-39203","BIT-wordpress-multisite-2021-39203","EUVD-2021-25585","GHSA-qxvw-qxm9-qvg6","UBUNTU-CVE-2021-39203"],"status":"published","title":"Private data disclosure/privilege escalation through the block editor in Wordpress","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions authenticated users who don't have permission to view private post types/data can bypass restrictions in the block editor under certain conditions. This affected WordPress 5.8 beta during the testing period. It's fixed in the final 5.8 release.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00941,"percentile":0.6138,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2021-09-09T22:00:11Z","modified":"2026-10-17T12:55:46Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"wordpress","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"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"wordpress","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"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"wordpress","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"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"wordpress","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"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.2+dfsg1-1ubuntu1","6.4.3+dfsg1-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.7.2+dfsg1-1.1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.7.2+dfsg1-1.1ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.7.2+dfsg1-1.1ubuntu1","6.7.2+dfsg1-1.1ubuntu2"]}],"products":[{"vendor":"wordpress","product":"wordpress"},{"vendor":"wordpress","product":"wordpress-develop"}],"references":[{"url":"https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-qxvw-qxm9-qvg6","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","web","report"]},{"url":"https://hackerone.com/reports/1225282","tags":["x_refsource_MISC","x_transferred","Permissions Required","web","report"]},{"url":"https://ubuntu.com/security/CVE-2021-39203","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-39203","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-39203","title":"Private data disclosure/privilege escalation through the block editor in Wordpress","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions authenticated users who don't have permission to view private post types/data can bypass restrictions in the block editor under certain conditions. This affected WordPress 5.8 beta during the testing period. It's fixed in the final 5.8 release.","status":"published","published":"2021-09-09T22:00:11Z","modified":"2024-08-04T01:58:18.303Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:33:09.540052Z"}],"euvd":[{"id":"EUVD-2021-25585","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions authenticated users who don't have permission to view private post types/data can bypass restrictions in the block editor under certain conditions. This affected WordPress 5.8 beta during the testing period. It's fixed in the final 5.8 release.","status":"published","published":"2021-09-09T22:00:11Z","modified":"2024-08-04T01:58:18Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T03:24:23.719378Z"}],"nvd":[{"id":"CVE-2021-39203","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions authenticated users who don't have permission to view private post types/data can bypass restrictions in the block editor under certain conditions. This affected WordPress 5.8 beta during the testing period. It's fixed in the final 5.8 release.","status":"published","published":"2021-09-09T22:15:09.683Z","modified":"2026-06-17T04:03:18.32Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":6,"vector":"AV:N/AC:M/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:06:58.502206Z"}],"osv":[{"id":"UBUNTU-CVE-2021-39203","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions authenticated users who don't have permission to view private post types/data can bypass restrictions in the block editor under certain conditions. This affected WordPress 5.8 beta during the testing period. It's fixed in the final 5.8 release.","status":"published","published":"2021-09-09T22:15:00Z","modified":"2026-10-17T12:55:46.941622742Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:28.526929Z"},{"id":"BIT-wordpress-2021-39203","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions authenticated users who don't have permission to view private post types/data can bypass restrictions in the block editor under certain conditions. This affected WordPress 5.8 beta during the testing period. It's fixed in the final 5.8 release.","status":"withdrawn","published":"2024-01-31T15:28:46.965Z","modified":"2026-03-13T04:57:14.02527202Z","updated_at":"2026-11-02T15:28:36.455807Z"},{"id":"BIT-wordpress-multisite-2021-39203","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions authenticated users who don't have permission to view private post types/data can bypass restrictions in the block editor under certain conditions. This affected WordPress 5.8 beta during the testing period. It's fixed in the final 5.8 release.","status":"withdrawn","published":"2024-01-31T15:28:35.107Z","modified":"2026-03-13T04:44:29.009677Z","updated_at":"2026-11-02T15:28:36.455807Z"}]}}