Vulnerability · Published Oct 3, 2026 · Assigned by WPScan

CVE-2026-88783Kubio AI Page Builder < 2.9.3 - Unauthenticated Stored XSS via Comment Content

High 8.8

In plain English

A high-severity cross-site scripting in Kubio AI Page Builder from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.3%top 79.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Unknown	Kubio AI Page Builder	0 – before 2.9.3

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://wpscan.com/vulnerability/94d11df1-dae7-479f-bc93-3db6b0925d99/ exploit, vdb-entry, technical-description