{"id":"CVE-2026-1217","aliases":["EUVD-2026-12800","GHSA-g9w4-m5fx-x3wv"],"status":"published","title":"Yoast Duplicate Post \u003c= 4.5 - Authenticated (Contributor+) Missing Authorization to Arbitrary Post Duplication and Overwrite","description":"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 \u0026 Republish feature to overwrite any published post with their own content.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00182,"percentile":0.07894,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-862"],"published":"2026-03-18T09:28:28Z","modified":"2026-06-17T10:15:20Z","fixes":[{"ecosystem":"Packagist","package":"yoast/duplicate-post","fixed_in":["4.6"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"yoast/duplicate-post","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.5"},{"fixed":"4.6"}]}]},{"source":"osv","ecosystem":"Packagist","package":"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"]}],"products":[{"vendor":"yoast","product":"yoast duplicate post"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/05f175e6-08a9-4199-948c-5bd8b3caaa39?source=cve","tags":["web"]},{"url":"https://plugins.trac.wordpress.org/browser/duplicate-post/tags/4.5/src/handlers/bulk-handler.php#L115","tags":["web"]},{"url":"https://plugins.trac.wordpress.org/browser/duplicate-post/tags/4.5/src/post-republisher.php#L128","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1217","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-g9w4-m5fx-x3wv"},{"url":"https://github.com/Yoast-dist/duplicate-post","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-1217","title":"Yoast Duplicate Post \u003c= 4.5 - Authenticated (Contributor+) Missing Authorization to Arbitrary Post Duplication and Overwrite","description":"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 \u0026 Republish feature to overwrite any published post with their own content.","status":"published","published":"2026-03-18T09:28:28.758Z","modified":"2026-04-08T16:33:31.708Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:20:00.879257Z"}],"euvd":[{"id":"EUVD-2026-12800","description":"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 \u0026 Republish feature to overwrite any published post with their own content.","status":"published","published":"2026-03-18T09:28:28Z","modified":"2026-04-08T16:33:31Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:25:11.239745Z"}],"ghsa":[{"id":"GHSA-g9w4-m5fx-x3wv","title":"Yoast Duplicate Post has an Authenticated (Contributor+) Missing Authorization to Arbitrary Post Duplication and Overwrite","description":"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 \u0026 Republish feature to overwrite any published post with their own content.","status":"published","published":"2026-03-18T12:31:51Z","modified":"2026-03-19T19:37:41Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:39:38.524712Z"}],"nvd":[{"id":"CVE-2026-1217","description":"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 \u0026 Republish feature to overwrite any published post with their own content.","status":"published","published":"2026-03-18T10:16:23.96Z","modified":"2026-06-17T10:15:20.433Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:12:09.735529Z"}],"osv":[{"id":"GHSA-g9w4-m5fx-x3wv","title":"Yoast Duplicate Post has an Authenticated (Contributor+) Missing Authorization to Arbitrary Post Duplication and Overwrite","description":"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 \u0026 Republish feature to overwrite any published post with their own content.","status":"published","published":"2026-03-18T12:31:51Z","modified":"2026-03-19T19:56:20.581613Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:46:47.472172Z"}]}}