CVE-2026-75027: medium-severity vulnerability in themifyme Themify Builder
Themify Builder <= 7.8.0 - Missing Authorization to Unauthenticated Arbitrary Builder Data Modification via 'tb_update_old_data' AJAX Action
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.6%
The Themify Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 7.8.0. 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 modify the stored Themify Builder styling data (padding and margin properties) of arbitrary posts, including private and draft posts, by supplying an attacker-controlled post ID and JSON styling payload. The nonce required by the handler is automatically emitted to all frontend pages rendered by the builder via wp_localize_script, meaning any unauthenticated visitor can trivially retrieve a valid nonce from page source and satisfy the only access control in place.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected products
themifyme · Themify BuilderRelated CVEs — themifyme Themify Builder
In the same product, most dangerous first.
CVE-2026-15407MEDIUMThemify Builder <= 7.7.7 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Post Stylesheet Write/Delete via tb_generate_on_fly AJAX ActionEPSS 0.5%CVE-2024-56216MEDIUMWordPress Themify Builder plugin <= 7.6.3 - Local File Inclusion vulnerabilityEPSS 0.5%CVE-2024-9385MEDIUMThemify Builder <= 7.6.2 - Reflected Cross-Site ScriptingEPSS 0.4%CVE-2026-15097MEDIUMThemify Builder <= 7.7.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'height_slider' Slider Module FieldEPSS 0.3%CVE-2026-96831HIGHWordPress Themify Builder plugin <= 7.8.1 - PHP Object Injection vulnerabilityEPSS 0.3%CVE-2025-9353MEDIUMThemify Builder <= 7.6.9 - Authenticated (Contributor+) Stored Cross-Site ScriptingEPSS 0.3%
References
https://plugins.trac.wordpress.org/browser/themify-builder/tags/7.7.6/classes/class-themify-builder.php#L227https://plugins.trac.wordpress.org/browser/themify-builder/tags/7.7.6/classes/class-themify-builder.php#L518https://plugins.trac.wordpress.org/browser/themify-builder/tags/7.7.6/classes/class-themify-builder.php#L693https://plugins.trac.wordpress.org/browser/themify-builder/tags/7.7.6/classes/class-themify-builder-stylesheet.php#L69https://plugins.trac.wordpress.org/browser/themify-builder/tags/7.8.0/classes/class-themify-builder.php#L227https://plugins.trac.wordpress.org/browser/themify-builder/tags/7.8.0/classes/class-themify-builder.php#L518https://plugins.trac.wordpress.org/browser/themify-builder/tags/7.8.0/classes/class-themify-builder.php#L693https://plugins.trac.wordpress.org/browser/themify-builder/tags/7.8.0/classes/class-themify-builder-stylesheet.php#L69https://plugins.trac.wordpress.org/changeset?reponame=&old=3653841%40themify-builder&new=3653841%40themify-builderhttps://www.wordfence.com/threat-intel/vulnerabilities/id/b1892207-0e51-4b2e-bc71-d6a0111b7041?source=cve