Medium severity · published Aug 11, 2026
CVE-2026-16974
Kirki - Freeform Page Builder, Website Builder & Customizer <= 6.2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via post_meta Shortcode
6.4
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KF
Kirki – Freeform Page Builder, Website Builder & Customizer · themeum
through 6.2.0 · source: vendor
Affected product
KF
Kirki – Freeform Page Builder, Website Builder & Customizer
themeum
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-16974
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-16974
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3636487
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/8d9fe6b4-8696-45eb-bdb8-764dea7cce88?source=cve
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