6.4
MEDIUM CVSS 3.1
CVE-2026-115816
Kubio AI Page Builder <= 2.9.4 - Authenticated (Subscriber+) Stored Cross-Site Scripting via kubio/shortcode Block via Product Review
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.

INFO

Published Date :

Nov. 7, 2026, 2:29 a.m.

Last Modified :

Nov. 7, 2026, 2:29 a.m.

Remotely Exploit :

Yes !

Source :

Wordfence
Affected Products

The following products are affected by CVE-2026-115816 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Extendthemes kubio_ai_page_builder
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM MITRE-CVE
Solution
Update Kubio AI Page Builder to a version later than 2.9.4 to fix Stored XSS.
  • Update Kubio AI Page Builder plugin to the latest version.
  • Ensure input sanitization and output escaping are enabled.
  • Review and approve user-submitted content carefully.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-115816 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.