Kadence Blocks <= 3.7.7 - Missing Authorization to Authenticated (Contributor+) Arbitrary Media Attachment Creation via kadence_import_process_pattern/kadence_import_process_data AJAX Actions
Summary
| CVE | CVE-2026-12902 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-01 05:16:17 UTC |
| Updated | 2026-07-01 13:56:17 UTC |
| Description | The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.7.7. 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 contributor-level access and above, to create arbitrary Media Library attachments by downloading remote images to the site's uploads directory via wp_upload_bits() and wp_insert_attachment(), bypassing the upload_files capability boundary. |
Risk And Classification
Primary CVSS: v3.1 4.3 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS: 0.002720000 probability, percentile 0.189870000 (date 2026-07-03)
Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 4.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| 3.1 | CNA | DECLARED | 4.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Stellarwp | Kadence Blocks Page Builder Toolkit For Gutenberg Editor | affected 3.7.7 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/class-kadence-bloc... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/class-kadence-bloc... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/class-kadence-bloc... | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/7de2cb7a-dc3d-41f2-8faa-9e87f... | [email protected] | www.wordfence.com | |
| plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/class-kadence-bloc... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/class-kadence-bloc... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/changeset | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/class-kadence-bloc... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/class-kadence-bloc... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/class-kadence-bloc... | [email protected] | plugins.trac.wordpress.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: se1en (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-06-22T14:34:00.000Z | Vendor Notified |
| CNA | 2026-06-30T00:00:00.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.