CVE-2026-12904Kadence Blocks <= 3.7.7 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary Optimizer Data Deletion/Read/Modification via 'post_path' Parameter
- 4.3MediumCVSS base score
- 0.45%Exploitation in 30 daysEPSS · top 60% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The Kadence Blocks – Gutenberg Blocks for Page Builder Features plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to and including 3.7.7. This is due to a mismatch between the object used for authorization and the object actually accessed in the Optimize_Rest_Controller's create_item(), get_item(), delete_item(), and bulk_delete_items() endpoints — authorization is checked via current_user_can('edit_post'/'delete_post', $post_id) against the user-supplied post_id, while the storage layer keys analysis records on sha256($post_path) from a separately supplied, attacker-controlled post_path parameter, with no enforcement that post_path corresponds to post_id. This makes it possible for authenticated attackers, with Contributor-level access and above, to read or delete optimizer analysis records belonging to posts owned by other users by submitting their own post_id (which passes the capability check) together with the victim post's path.
Timeline
ID reserved
By Wordfence
- 9 days later
· 9 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
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)
- 0.45% · top 60% of all CVEs (12 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.
Affected products
stellarwp · Kadence Blocks — Page Builder Toolkit for Gutenberg Editor
- affected ≤ 3.7.7
References
References20
- https://www.wordfence.com/threat-intel/vulnerabilities/id/24cdd50f-742c-457c-85f7-9cccaf366e87?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L232 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L458 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L197 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L420 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L153 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L383 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L339 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Store/Table_Store.php#L96 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Path/Path.php#L60 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L232 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L458 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L197 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L420 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L153 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L383 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L339 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Store/Table_Store.php#L96 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Path/Path.php#L60 (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)
- EUVD EUVD-2026-40890 (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://cveledger.app/cve/CVE-2026-12904)Record last updated .