CVE-2026-115816

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

Published Nov 7, 2026 CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Extendthemes
Extendthemes kubio Ai Page Builder
Wordpress-extensions
Wordpress-extensions kubio Ai Page Builder
Vendors & Products Extendthemes
Extendthemes kubio Ai Page Builder
Wordpress-extensions
Wordpress-extensions kubio Ai Page Builder
Type Values Removed Values Added
Description 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.
Title Kubio AI Page Builder <= 2.9.4 - Authenticated (Subscriber+) Stored Cross-Site Scripting via kubio/shortcode Block via Product Review
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Nov 7, 2026, 6:06 PM
Reserved
Oct 23, 2026, 4:10 PM
Status
Deferred
Published
Nov 7, 2026, 3:16 AM
Modified
Nov 7, 2026, 6:17 PM