{"id":"GHSA-g9w4-m5fx-x3wv","summary":"Yoast Duplicate Post has an Authenticated (Contributor+) Missing Authorization to Arbitrary Post Duplication and Overwrite","details":"The Yoast Duplicate Post plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the clone_bulk_action_handler() and republish_request() functions in all versions up to, and including, 4.5. This makes it possible for authenticated attackers, with Contributor-level access and above, to duplicate any post on the site including private, draft, and trashed posts they shouldn't have access to. Additionally, attackers with Author-level access and above can use the Rewrite & Republish feature to overwrite any published post with their own content.","aliases":["CVE-2026-1217"],"modified":"2026-03-19T19:56:20.581613Z","published":"2026-03-18T12:31:51Z","database_specific":{"cwe_ids":["CWE-862"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-03-19T19:37:40Z","nvd_published_at":"2026-03-18T10:16:23Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1217"},{"type":"PACKAGE","url":"https://github.com/Yoast-dist/duplicate-post"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/duplicate-post/tags/4.5/src/handlers/bulk-handler.php#L115"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/duplicate-post/tags/4.5/src/post-republisher.php#L128"},{"type":"WEB","url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/05f175e6-08a9-4199-948c-5bd8b3caaa39?source=cve"}],"affected":[{"package":{"name":"yoast/duplicate-post","ecosystem":"Packagist","purl":"pkg:composer/yoast/duplicate-post"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.6"}]}],"versions":["4.1.2","4.2","4.2-RC1","4.3","4.3-RC1","4.4","4.4-RC1","4.4-RC2","4.4-RC3","4.5","4.5-RC1","4.6-RC1","4.6-RC2"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-g9w4-m5fx-x3wv/GHSA-g9w4-m5fx-x3wv.json","last_known_affected_version_range":"\u003c= 4.5"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"}]}