Missing authorization in themeum Kirki – Freeform Page Builder, Website Builder &…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 6.1.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with custom-level access and above, to read arbitrary user metadata and sensitive user record fields — including email address, assigned roles, registration date, and any user_meta values — belonging to any WordPress user including administrators, by supplying a target user ID with a user-type context to the frontend collection endpoint.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-18347
- 2026-10-03 Alias added: GHSA-mp8r-x8v9-xf3q
References
Other 12
- https://www.wordfence.com/threat-intel/vulnerabilities/id/fa1e0bcd-f881-4b01-b802-7cb18a22a07f?source=cve
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/API/Frontend/Controllers/CollectionController.php#L97
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/API/Frontend/Controllers/CollectionController.php#L97
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/API/Frontend/Controllers/FrontendRESTController.php#L42
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/API/Frontend/Controllers/FrontendRESTController.php#L82
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/HelperFunctions.php#L1098
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/Ajax/Users.php#L227
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/API/Frontend/Controllers/FrontendRESTController.php#L42
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/API/Frontend/Controllers/FrontendRESTController.php#L82
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/HelperFunctions.php#L1098
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/Ajax/Users.php#L227
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3629933%40kirki&new=3629933%40kirki
More themeum vulnerabilities
- TI-2024-09629 Tutor LMS <= 2.7.6 - Unauthenticated SQL Injection via rating_filter CVSS 3.1HIGH 7.5
- TI-2023-02936 Tutor LMS < 2.2.1 - Unauthenticated Access to Tutor LMS Lesson Resources via REST API CVSS 3.1HIGH 7.5
- TI-2021-07196 Qubely < 1.8.6 - Unauthenticated Arbitrary E-mail Sending CVSS 3.1HIGH 7.5
- TI-2023-05666 WP Crowdfunding < 2.1.9 - Reflected XSS CVSS 3.1MEDIUM 6.1
- TI-2023-00225 Tutor LMS < 2.0.10 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
- TI-2023-04422 Tutor LMS < 2.3.0 - Subscriber+ Stored Cross-Site Scripting CVSS 3.1MEDIUM 5.4
Sources
- CVE-2026-18347 · CVE Program
- CVE-2026-18347 · NVD
- FIRST EPSS
- GHSA-mp8r-x8v9-xf3q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences