CVE-2026-15249: Patterns Kit <= 1.0.3 - Contributor+ Stored XSS via YouTube Popup Link

Published Aug 12, 2026
·
Updated

The Patterns Kit WordPress plugin through 1.0.3 does not escape a link attribute before its client-side script inserts it into the page, allowing users with a role as low as Contributor to store a payload that executes in the browser of a user who views the content and clicks the affected element.

Affected Software

1 affected component
WordPress Patterns Kit<=1.0.3

Event History

Aug 12, 2026
CVE Published
via MITRE·06:00 AM
Data Sourced
via MITRE·06:00 AM
DescriptionWeakness
Data Sourced
via NVD·06:18 AM
Description
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Frequently Asked Questions

1

What is the severity of CVE-2026-15249?

The severity of CVE-2026-15249 is rated as risk 36, indicating a significant potential impact.

2

How do I fix CVE-2026-15249?

To fix CVE-2026-15249, update the Patterns Kit WordPress plugin to version 1.0.4 or higher where the vulnerability is addressed.

3

Who is affected by CVE-2026-15249?

CVE-2026-15249 affects users with Contributor roles and higher who can store malicious payloads through the Patterns Kit plugin.

4

What type of vulnerability is CVE-2026-15249?

CVE-2026-15249 is classified as a stored Cross-Site Scripting (XSS) vulnerability.

5

What can an attacker do with CVE-2026-15249?

An attacker can exploit CVE-2026-15249 to execute arbitrary JavaScript in the browser of users who interact with affected content.

Company

Resources

Contact

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CVE-2026-15249 - Patterns Kit <= 1.0.3 - Contributor+ Stored XSS via YouTube Popup Link - SecAlerts