{"cve":"CVE-2026-16779","nvd":{"published":"2026-08-16T05:16:47.910","modified":"2026-08-20T12:48:10.287","status":"Deferred","description":"The Kubio AI Page Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.8.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to overwrite front-page configuration options (show_on_front, page_on_front, and page_for_posts), rewrite primary navigation menu items, replace template parts, and overwrite the Kubio global-data post. Although a nonce check via check_ajax_referer() is present, the nonce is unconditionally emitted into window.kubioUtilsData for every user who can load the block editor, making it harvestable by any Contributor and therefore an ineffective authorization barrier.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","score":4.3},"cwes":["CWE-862"],"references":["https://plugins.trac.wordpress.org/browser/kubio/tags/2.8.5/lib/editor-assets.php#L411","https://plugins.trac.wordpress.org/browser/kubio/tags/2.8.5/lib/kubio-block-library.php#L197","https://plugins.trac.wordpress.org/browser/kubio/tags/2.8.5/lib/src/Core/KubioFrontPageRevertNotice.php#L151","https://plugins.trac.wordpress.org/browser/kubio/tags/2.8.5/lib/src/Core/KubioFrontPageRevertNotice.php#L25","https://plugins.trac.wordpress.org/changeset?reponame=&old=3633801%40kubio&new=3633801%40kubio"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:49:10.689564601+00:00"},"epss":{"cve":"CVE-2026-16779","score":0.00385,"percentile":0.3259,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}