CVE-2026-12902
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
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.47% · top 59% of all CVEs (5 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
stellarwp · Kadence Blocks — Page Builder Toolkit for Gutenberg Editor
- affected ≤ 3.7.7
References (10)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7de2cb7a-dc3d-41f2-8faa-9e87f78531b5?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/class-kadence-blocks-prebuilt-library.php#L1078 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/class-kadence-blocks-prebuilt-library.php#L817 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/class-kadence-blocks-prebuilt-library.php#L916 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/class-kadence-blocks-prebuilt-library.php#L1223 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/class-kadence-blocks-prebuilt-library.php#L1078 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/class-kadence-blocks-prebuilt-library.php#L817 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/class-kadence-blocks-prebuilt-library.php#L916 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/class-kadence-blocks-prebuilt-library.php#L1223 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3590217%40kadence-blocks&new=3590217%40kadence-blocks&sfp_email=&sfph_mail= (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-12902)Record last updated .