High 7.2Published Oct 7, 2026

CVE-2026-102173Kirki – Freeform Page Builder, Website Builder & Customizer <= 6.3.1 - Unauthenticated Stored Cross-Site Scripting via Registration Metadata

Updated under an hour ago (Oct 27, 2026, 5:50 PM ET)

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It affects themeum Kirki – Freeform Page Builder, Website Builder & Customizer. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.37%, higher than 29% of scored CVEs.

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Every CVE for themeum Kirki – Freeform Page Builder, Website Builder & Customizer

Exploited in the last 30 days

The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via registration metadata in all versions up to, and including, 6.3.1 This is due to insufficient escaping in `ExceptionalElements::image_element()`, which concatenates a user-meta value straight into an `<img src="…">` attribute. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute whenever a user accesses a page rendering a Kirki users collection whose image element is bound to one of the nine registration meta fields. Requires public user registration to be enabled and a published page carrying a `kirki-register` element, which prints the required element nonce into the public markup.

CVSS: 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.37% (percentile 29)
Assigned by: Wordfence
NVD analysis: Deferred
Record last updated: Oct 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

themeum Kirki – Freeform Page Builder, Website Builder & Customizer themeum:kirki_freeform_page_builder_website_builder_and_customizer (from the name)	through 6.3.1	CNA record

References

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/368001e9-3806-41d5-902e-0facf7fb31ff?source=cve
https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/Frontend/Preview/ExceptionalElements.php#L1184
https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/Frontend/Preview/ExceptionalElements.php#L1079
https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/HelperFunctions.php#L1151
https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/ComponentLibrary/controller/CompLibFormHandler.php#L361
https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/ComponentLibrary/controller/CompLibFormHandler.php#L389
https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/ComponentLibrary/controller/CompLibFormHandler.php#L76
https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/ComponentLibrary/controller/ElementGenerator.php#L259
https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/Frontend/Preview/Utils.php#L308
https://plugins.trac.wordpress.org/changeset?reponame=&new=3718900%40kirki%2Ftags%2F6.3.2&old=3697265%40kirki%2Ftags%2F6.3.1
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.