themifyme Themify Builder Plugin up to 7.8.4 on WordPress Custom Font _save_meta variations cross site scripting

Summaryinfo

A vulnerability was found in themifyme Themify Builder Plugin up to 7.8.4. It has been declared as problematic. The impacted element is the function Themify_Metabox::_save_meta of the component Custom Font. Such manipulation of the argument variations leads to cross site scripting. This vulnerability is referenced as CVE-2026-115869. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in themifyme Themify Builder Plugin up to 7.8.4 and classified as problematic. Affected by this issue is the function Themify_Metabox::_save_meta of the component Custom Font. The manipulation of the argument variations with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

The Themify Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'variations' repeater field of Custom Font (tb_cf) posts in versions up to, and including, 7.8.4. This is due to insufficient input sanitization and output escaping on the variations post meta: Themify_Metabox::_save_meta() only passes the value through wp_kses_data() when the field type is 'textbox' or 'textarea', so the 'repeater' field writes attacker-controlled sub-fields (style, woff/woff2/ttf/svg/eot URLs) to update_post_meta() verbatim, and Themify_Custom_Fonts::render_columns() later echoes those values unescaped inside a <style> block on the Custom Fonts admin listing. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page (specifically, the Custom Fonts admin listing).

The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2026-115869 since 10/23/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• themifyme

Name

• Themify Builder Plugin

Version

• 7.8.0
• 7.8.1
• 7.8.2
• 7.8.3
• 7.8.4

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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