CVE-2026-17037
Received Received - Intake

Stored XSS in Kirki Page Builder WordPress Plugin

Publication date: 2026-09-11

Last updated on: 2026-09-11

Assigner: Wordfence

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

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Meta Information

Published
2026-09-11
Last Modified
2026-09-11
Generated
2026-09-11
AI Q&A
2026-09-11
EPSS Evaluated
N/A
NVD
CVE-2026-17037
EUVD
EUVD-2026-76028

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
aristath kirki to 6.2.0 (inc)
kirki freeform_page_builder to 6.2.0 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

The Kirki plugin for WordPress has a stored cross-site scripting vulnerability due to insufficient input sanitization and output escaping in the 'comment' parameter. This allows unauthenticated attackers to inject malicious scripts into pages.

Detection Guidance

This vulnerability can be detected by checking for the presence of the Kirki plugin versions up to and including 6.2.0 on your WordPress site. Inspect the plugin files for unsanitized input handling in the 'comment' parameter. No specific commands are provided in the context.

Impact Analysis

Unauthenticated attackers could inject scripts that execute when users access infected pages. This may lead to unauthorized actions, data theft, or defacement of websites using the vulnerable plugin.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, potentially violating GDPR (data protection) or HIPAA (health data privacy) by exposing sensitive user information.

Mitigation Strategies

Immediately update the Kirki plugin to the latest version beyond 6.2.0. If an update is not available, consider disabling the plugin temporarily until a patch is released. Review and sanitize all user inputs in the 'comment' parameter to prevent XSS attacks.

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