What’s Vulnerable › Vulnerabilities

CVE-2026-16974: Kirki - Freeform Page Builder, Website Builder & Customizer <= 6.2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via post_meta Shortcode

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-11 · updated 2026-08-12
• Weakness: CWE-79

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.

Affected products

• themeum Kirki – Freeform Page Builder, Website Builder & Customizer: through 6.2.0

References

• https://plugins.trac.wordpress.org/changeset/3636487
• https://www.wordfence.com/threat-intel/vulnerabilities/id/8d9fe6b4-8696-45eb-bdb8-764dea7cce88?source=cve

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