Reported vulnerability

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

Q: Which versions of Kadence Blocks — Page Builder Toolkit for Gutenberg Editor are affected?

Wordfence lists these affected versions: Start version unspecified, through 3.7.7. Use the version checker above to compare your installed release with this report.

Q: Is a fix available for Kadence Blocks — Page Builder Toolkit for Gutenberg Editor?

Wordfence reports a fix for this issue in Kadence Blocks — Page Builder Toolkit for Gutenberg Editor. It lists these fixed versions: 3.7.8. Back up your website and test the recommended update before applying it to your live site.

Q: Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Published 30 Jun 2026

Updated 1 Jul 2026

CVE-2026-12904

Compare your installed software with the affected versions below. Follow the source’s remediation guidance and test an available update after taking a backup. A database entry describes a reported issue; it does not establish whether a particular website has been compromised.

Does this affect my version?

Check your installed version against this advisory. This compares the report’s version ranges and does not scan your website.

Wordfence advisory

medium · CVSS 4.3

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.

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

Kadence Blocks — Page Builder Toolkit for Gutenberg Editor

Software: plugin · kadence-blocks
Affected versions: Start version unspecified, through 3.7.7
Fix availability: Fix available
Fixed versions: 3.7.8

Recommended action

Update to version 3.7.8, or a newer patched version

Further references (1)

wordfence.com/threat-intel/vulnerabilities/id/24cdd50f-742c-457c-85f7-9cccaf366e87?source=api-prod

Data sources and licences

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CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Read licence terms

Source: Wordfence

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Questions about this vulnerability

Which versions of Kadence Blocks — Page Builder Toolkit for Gutenberg Editor are affected?

Wordfence lists these affected versions: Start version unspecified, through 3.7.7. Use the version checker above to compare your installed release with this report.

Is a fix available for Kadence Blocks — Page Builder Toolkit for Gutenberg Editor?

Wordfence reports a fix for this issue in Kadence Blocks — Page Builder Toolkit for Gutenberg Editor. It lists these fixed versions: 3.7.8. Back up your website and test the recommended update before applying it to your live site.

Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Does an affected version mean my website has been hacked?

An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.

These reports cover at least one of the same plugins, themes or WordPress core. Check each report’s affected versions separately.

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