Kadence Blocks <= 3.7.7 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary Optimizer Data Deletion/Read/Modification via 'post_path' Parameter

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Summary

CVECVE-2026-12904
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-01 05:16:17 UTC
Updated2026-07-01 13:56:17 UTC
DescriptionThe 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.

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: 0.002930000 probability, percentile 0.210490000 (date 2026-07-04)

Problem Types: CWE-639 | CWE-639 CWE-639 Authorization Bypass Through User-Controlled Key

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Stellarwp Kadence Blocks Page Builder Toolkit For Gutenberg Editor affected 3.7.7 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimize... [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/3.7.6/includes/resources/Optimize... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/24cdd50f-742c-457c-85f7-9ccca... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimize... [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

SourceTimeEvent
CNA2026-06-22T14:49:11.000ZVendor Notified
CNA2026-06-30T14:57:59.000ZDisclosed
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