themifyme Themify Builder Plugin up to 7.7.7 on WordPress authorization

Summaryinfo

A vulnerability has been found in themifyme Themify Builder Plugin up to 7.7.7 and classified as critical. Affected by this issue is some unknown functionality of the component Builder. This manipulation causes authorization. This vulnerability is handled as CVE-2026-15407. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in themifyme Themify Builder Plugin up to 7.7.7. It has been declared as critical. Affected by this vulnerability is an unknown part of the component Builder. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The Themify Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 7.7.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to overwrite or delete the generated CSS stylesheet file of arbitrary posts, including private and draft posts owned by other users, and modify plugin-scoped font options. The required CSRF nonce (tf_nonce) is emitted on public front-end builder pages via wp_localize_script, making it trivially obtainable by any authenticated user visiting such a page.

The advisory is shared at wordfence.com. This vulnerability is known as CVE-2026-15407 since 07/10/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/16/2026).

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

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• WordPress Plugin

Vendor

• themifyme

Name

• Themify Builder Plugin

Version

• 7.7.0
• 7.7.1
• 7.7.2
• 7.7.3
• 7.7.4
• 7.7.5
• 7.7.6
• 7.7.7

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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