Cozythemes Cozy Blocks Plugin up to 2.2.17 on WordPress Block Renderers sidebarNonce authorization

Summaryinfo

A vulnerability was found in Cozythemes Cozy Blocks Plugin up to 2.2.17. It has been classified as problematic. The affected element is an unknown function of the component Block Renderers. The manipulation of the argument sidebarNonce leads to authorization. This vulnerability is referenced as CVE-2026-19948. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Cozythemes Cozy Blocks Plugin up to 2.2.17 and classified as problematic. This issue affects an unknown code block of the component Block Renderers. The manipulation of the argument sidebarNonce with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. Impacted is confidentiality. The summary by CVE is:

The Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 700+ Patterns, 58 Blocks & Templates plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.2.17. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to retrieve the name, price, short description, image URL, permalink, stock status, and product type of draft, pending, private, and catalog-hidden WooCommerce products not intended to be publicly visible. The sidebarNonce value is emitted unconditionally into public page HTML by multiple block renderers with no login gate, allowing unauthenticated visitors to harvest a valid nonce and pass the only authentication check in the handler.

It is possible to read the advisory at wordfence.com. The identification of this vulnerability is CVE-2026-19948 since 08/15/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/01/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• Cozythemes

Name

• Cozy Blocks Plugin

Version

• 2.2.0
• 2.2.1
• 2.2.2
• 2.2.3
• 2.2.4
• 2.2.5
• 2.2.6
• 2.2.7
• 2.2.8
• 2.2.9
• 2.2.10
• 2.2.11
• 2.2.12
• 2.2.13
• 2.2.14
• 2.2.15
• 2.2.16
• 2.2.17

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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CVSSv3info

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Threat Intelligenceinfo

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Sourcesinfo

Entryinfo

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