Authorization bypass in stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| stellarwp | Kadence Blocks — Page Builder Toolkit for Gutenberg Editor | up to 3.7.7 | — | No fix listed | CNA |
- Kadence Blocks — Page Builder Toolkit for Gutenberg Editor Vendorstellarwp Affected up to 3.7.7 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:kadencewp:gutenberg_blocks_with_ai:*:*:*:*:*:*:*:* | — | — | Kadence WP |
- cpe:2.3:a:kadencewp:gutenberg_blocks_with_ai:*:*:*:*:*:*:*:* Versions — — ·Kadence WP
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-12904
- 2026-10-03 Alias added: GHSA-pjfr-44xr-rrw5
References
Other 20
- https://www.wordfence.com/threat-intel/vulnerabilities/id/24cdd50f-742c-457c-85f7-9cccaf366e87?source=cve
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L232
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L458
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L197
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L420
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L153
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L383
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L339
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Store/Table_Store.php#L96
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/resources/Optimizer/Path/Path.php#L60
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L232
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L458
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L197
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L420
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L153
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L383
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php#L339
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Store/Table_Store.php#L96
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/resources/Optimizer/Path/Path.php#L60
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3590217%40kadence-blocks&new=3590217%40kadence-blocks&sfp_email=&sfph_mail=
More stellarwp vulnerabilities
- TI-2024-05498 Deserialization of untrusted data in stellarwp GiveWP – Donation Plugin and Fundraising… CVSS 3.1CRITICAL 10.0
- TI-2023-02655 BookIt <= 2.3.7 - Authentication Bypass CVSS 3.1CRITICAL 9.8
- TI-2024-07671 The Events Calendar <= 6.6.4 - Unauthenticated SQL Injection CVSS 3.1CRITICAL 9.8
- TI-2024-03888 The Events Calendar < 6.4.0.1 - Reflected XSS CVSS 3.1CRITICAL 9.1
- TI-2024-07745 GiveWP – Donation Plugin and Fundraising Platform <= 3.16.1 - Unauthenticated PHP Object Injection CVSS 3.1CRITICAL 9.8
- TI-2024-04952 The Events Calendar < 6.8.2.1 - Unauthenticated Password Protected Event Disclosure CVSS 3.1MEDIUM 5.3
Sources
- CVE-2026-12904 · CVE Program
- CVE-2026-12904 · NVD
- FIRST EPSS
- GHSA-pjfr-44xr-rrw5 · 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