Reflected XSS in Kubio AI Page Builder Theme Plugin

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.

Casky was already ahead

This CVE exploits attack patterns that Casky's 323matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

Kubio AI Page Builder, a WordPress theme plugin, contains an improper input neutralization vulnerability that allows attackers to inject malicious scripts into web pages. Reflected XSS attacks occur when user-supplied input is echoed back to the browser without proper sanitization, enabling attackers to execute arbitrary JavaScript in victims' browsers. This vulnerability affects versions through 2.9.3 and impacts WordPress sites using Kubio themes, potentially compromising site administrators, content creators, and visitors who click malicious links crafted by attackers.

Casky's 323 matched security skills leverage Claude's extended reasoning to detect the attack patterns associated with this vulnerability across MITRE ATT&CK techniques TA0001 (Initial Access) and TA0043 (Reconnaissance). Practitioners using Casky would identify suspicious input validation gaps in page builder parameters, detect reflected script payloads in HTTP requests and responses, and recognize reconnaissance activity as attackers probe for vulnerable input vectors. The platform's skill mapping enables detection of both the vulnerability mechanics—improper output encoding in dynamically generated web pages—and adversarial tactics, such as phishing campaigns embedding XSS payloads in URLs that exploit this weakness. Security teams gain visibility into attack chains where initial reconnaissance precedes payload delivery through crafted links targeting site administrators.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

323 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-94167.

Abuse of Public-Facing API: Mobile API Abuse

mobile security · low

Run

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

MITRE ATT&CK Techniques

TA0001 TA0043

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