{"id":"CVE-2026-15947","aliases":["EUVD-2026-83572","GHSA-vpqr-9v4h-mgff"],"status":"published","title":"Search Atlas SEO \u003c= 2.6.23 - Missing Authorization to Authenticated (Subscriber+) Site-Wide Option Modification via 'metasync_post_types' Parameter","description":"The Metasync plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_instant_indexing_settings() function in versions up to, and including, 2.6.23. This function is registered on the admin_init hook and only checks for the presence of $_POST['submit'] before writing attacker-supplied $_POST['metasync_post_types'] into the site-wide 'metasync_options_instant_indexing' option via update_option(); no current_user_can()/current_user_has_plugin_access() check and no nonce verification are performed. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the site's Google Instant Indexing post-type configuration, controlling which post types are auto-submitted to Google's Instant Indexing service.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00371,"percentile":0.31237,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-09-19T07:43:13Z","modified":"2026-09-21T13:33:33Z","products":[{"vendor":"shahrukhlinkgraph","product":"search atlas seo – otto ai seo automation for wordpress"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/1bfba54f-961d-4889-9272-0020c9fa0801?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.17/admin/class-metasync-admin.php#L6364"},{"url":"https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.17/admin/class-metasync-admin.php#L6358"},{"url":"https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.17/admin/class-metasync-admin.php#L384"},{"url":"https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.16/admin/class-metasync-admin.php#L6364"},{"url":"https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.16/admin/class-metasync-admin.php#L6358"},{"url":"https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.16/admin/class-metasync-admin.php#L384"},{"url":"https://plugins.trac.wordpress.org/changeset/3676919"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15947"},{"url":"https://github.com/advisories/GHSA-vpqr-9v4h-mgff"}],"sources":{"cve":[{"id":"CVE-2026-15947","title":"Search Atlas SEO \u003c= 2.6.23 - Missing Authorization to Authenticated (Subscriber+) Site-Wide Option Modification via 'metasync_post_types' Parameter","description":"The Metasync plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_instant_indexing_settings() function in versions up to, and including, 2.6.23. This function is registered on the admin_init hook and only checks for the presence of $_POST['submit'] before writing attacker-supplied $_POST['metasync_post_types'] into the site-wide 'metasync_options_instant_indexing' option via update_option(); no current_user_can()/current_user_has_plugin_access() check and no nonce verification are performed. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the site's Google Instant Indexing post-type configuration, controlling which post types are auto-submitted to Google's Instant Indexing service.","status":"published","published":"2026-09-19T07:43:13.125Z","modified":"2026-09-19T14:01:24.745Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T13:47:51.033687Z"}],"euvd":[{"id":"EUVD-2026-83572","description":"The Metasync plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_instant_indexing_settings() function in versions up to, and including, 2.6.23. This function is registered on the admin_init hook and only checks for the presence of $_POST['submit'] before writing attacker-supplied $_POST['metasync_post_types'] into the site-wide 'metasync_options_instant_indexing' option via update_option(); no current_user_can()/current_user_has_plugin_access() check and no nonce verification are performed. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the site's Google Instant Indexing post-type configuration, controlling which post types are auto-submitted to Google's Instant Indexing service.","status":"published","published":"2026-09-19T07:43:13Z","modified":"2026-09-19T14:01:24Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T17:28:06.658724Z"}],"ghsa":[{"id":"GHSA-vpqr-9v4h-mgff","title":"The Metasync plugin for WordPress is vulnerable to unauthorized modification of data due to a...","description":"The Metasync plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_instant_indexing_settings() function in versions up to, and including, 2.6.23. This function is registered on the admin_init hook and only checks for the presence of $_POST['submit'] before writing attacker-supplied $_POST['metasync_post_types'] into the site-wide 'metasync_options_instant_indexing' option via update_option(); no current_user_can()/current_user_has_plugin_access() check and no nonce verification are performed. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the site's Google Instant Indexing post-type configuration, controlling which post types are auto-submitted to Google's Instant Indexing service.","status":"published","published":"2026-09-19T09:32:11Z","modified":"2026-09-19T09:32:15Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:12:13.368323Z"}],"nvd":[{"id":"CVE-2026-15947","description":"The Metasync plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_instant_indexing_settings() function in versions up to, and including, 2.6.23. This function is registered on the admin_init hook and only checks for the presence of $_POST['submit'] before writing attacker-supplied $_POST['metasync_post_types'] into the site-wide 'metasync_options_instant_indexing' option via update_option(); no current_user_can()/current_user_has_plugin_access() check and no nonce verification are performed. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the site's Google Instant Indexing post-type configuration, controlling which post types are auto-submitted to Google's Instant Indexing service.","status":"published","published":"2026-09-19T08:16:53.063Z","modified":"2026-09-21T13:33:33.387Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:12:50.043898Z"}]}}