Insecure direct object reference in Kirki exposes user data
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
The Kirki Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to insecure direct object reference in all versions up to and including 6.3.2 via the 'context' parameter. Missing validation of a user controlled key lets unauthenticated attackers read sensitive profile data of arbitrary users, including email address, display name and user meta fields, through the REST response. Exploitation requires only a published page that uses a Kirki template with at least one user-type dynamic content block, and target user IDs can be enumerated through standard WordPress REST endpoints.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 6.3.2 via the 'context' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to expose arbitrary users' sensitive profile data — including email address, display name, nicename, registration date, profile image URL, and any string-valued user meta fields such as first name, last name, nickname, description, and custom meta keys — via the REST response. Exploitation requires a published page that uses a Kirki template containing at least one user-type dynamic content block; target user IDs are enumerable via standard WordPress REST endpoints, making the only prerequisite the presence of such a template on the site.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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
The sources list no fixed version for Kirki Freeform Page Builder, Website Builder & Customizer.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-18 Threatist record created from CVE-2026-107762
- 2026-10-18 Alias added: GHSA-8g7m-23fg-fm7v
References
Other 6
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1f2fd69f-d432-4eb2-9d28-cfd7dd100e82?source=cve
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/API/Frontend/Controllers/CollectionController.php#L179
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/API/Frontend/Controllers/FrontendRESTController.php#L64
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/Frontend/Preview/Utils.php#L466
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/HelperFunctions.php#L1152
- https://plugins.trac.wordpress.org/changeset/3743904/kirki/trunk/includes/API/Frontend/Controllers/CollectionController.php
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-2026-107762 · CVE Program
- CVE-2026-107762 · NVD
- FIRST EPSS
- GHSA-8g7m-23fg-fm7v · 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