Kirki - Freeform Page Builder, Website Builder & Customizer <= 6.2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via post_meta Shortcode

6.4
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2026-16974
CVSS 6.4 (Medium)
Publicly Published August 10, 2026
Last Updated August 11, 2026
Researcher Navapon Premkasem (71C4) (71C4)

Description

The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the post_meta Shortcode in all versions up to, and including, 6.2.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

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Vulnerability Details for Kirki – Freeform Page Builder, Website Builder & Customizer

Software Type Plugin
Software Slug kirki (view on wordpress.org)
Patched? Yes
Remediation Update to version 6.2.1, or a newer patched version
Affected Version
  • <= 6.2.0
Patched Version
  • 6.2.1

Recent vulnerabilities in Kirki – Freeform Page Builder, Website Builder & Customizer

# Title CVE ID CVSS Researchers Date
1 Kirki – Freeform Page Builder, Website Builder & Customizer < 6.0.14 - Missing Authorization CVE-2026-77754 5.3 Vaibhav Narkhede August 26, 2026
2 Kirki – Freeform Page Builder, Website Builder & Customizer < 6.2.1 - Unauthenticated Remote Code Execution CVE-2026-16747 9.8 Jakub Herman August 24, 2026
3 Kirki – Freeform Page Builder, Website Builder & Customizer < 6.2.3 - Authenticated (Editor+) Stored Cross-Site Scripting CVE-2026-74992 4.4 Mohammed Abd Alrahman August 21, 2026
4 Kirki – Freeform Page Builder, Website Builder & Customizer <= 6.2.4 - Unauthenticated Stored Cross-Site Scripting CVE-2026-66629 7.2 daroo August 18, 2026
5 Kirki <= 6.1.1 - Missing Authorization to Authenticated (Subscriber+) Sensitive Information Disclosure via 'context' Parameter CVE-2026-18347 4.3 Datist Pham August 15, 2026
6 Kirki <= 6.1.1 - Authenticated (Editor+) Path Traversal to Arbitrary File Read via 'data' Parameter CVE-2026-17604 4.9 Wordfence PRISM August 15, 2026
7 Kirki – Freeform Page Builder, Website Builder & Customizer < 6.0.13 - Unauthenticated PHP Object Injection CVE-2026-12720 8.1 Jakub Herman August 4, 2026
8 Kirki <= 6.0.13 - Authenticated (Editor+) Path Traversal to Arbitrary File Write (Zip Slip) CVE-2026-15601 4.9 Wordfence PRISM, cuokon July 31, 2026
9 Kirki <= 6.0.14 - Insecure Direct Object Reference to Unauthenticated Sensitive Information Disclosure via 'context' Parameter CVE-2026-13464 5.3 Abu Hurayra (HurayraIIT) July 23, 2026
10 Kirki <= 6.0.13 - Authenticated (Editor+) Path Traversal to Arbitrary Directory Deletion via 'family' Parameter CVE-2026-15457 4.9 Wordfence PRISM July 16, 2026

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