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CVE-2026-115816

Kubio AI Page Builder <= 2.9.4 - Authenticated (Subscriber+) Stored Cross-Site Scripting via kubio/shortcode Block via Product Review

The Kubio AI Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment (review body)' parameter in all versions up to, and including, 2.9.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires the attacker's review containing the payload to be approved, either automatically (due to a previously approved review from the same account) or manually by an administrator, and the active single-product template must use a Kubio-rendered wp:post-content block.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Extendthemes Wordpress-extensions
Products
Kubio Ai Page Builder Kubio Ai Page Builder
CVE-2026-94167

WordPress Kubio AI Page Builder plugin <= 2.9.3 - Cross Site Scripting (XSS) vulnerability

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Extend Themes Kubio AI Page Builder kubio allows Reflected XSS.This issue affects Kubio AI Page Builder: from n/a through 2.9.3.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Extendthemes Wordpress-extensions
Products
Kubio Ai Page Builder Kubio Ai Page Builder
CVE-2026-88782

Kubio AI Page Builder < 2.9.3 - Contributor+ Stored XSS via Image Gallery Item URL Attribute

The Kubio AI Page Builder WordPress plugin before 2.9.3 does not validate the URI scheme of a user-supplied value before outputting it as a link target, allowing users with the contributor role and above to store a payload which executes in the browser of anyone who follows the link, including an administrator previewing the unpublished submission.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Wordpress-extensions
Products
Kubio Ai Page Builder
CVE-2026-88783

Kubio AI Page Builder < 2.9.3 - Unauthenticated Stored XSS via Comment Content

The Kubio AI Page Builder WordPress plugin before 2.9.3 does not limit its widening of the allowed HTML elements to the editor context, so the wider set is applied when filtering content submitted by unauthenticated users as well, allowing them to store markup which the Kubio AI Page Builder WordPress plugin before 2.9.3's own script later executes in the browser of any visitor, or of an administrator reviewing the still-unapproved submission.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Wordpress-extensions
Products
Kubio Ai Page Builder
CVE-2026-100107

Kubio AI Page Builder <= 2.9.2 - Unauthenticated Stored Cross-Site Scripting via SVG Comment Content (KSES Allowlist Bypass)

The Kubio AI Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 2.9.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Vendors
Extendthemes Wordpress-extensions
Products
Kubio Ai Page Builder Kubio Ai Page Builder