Threat intelligence

Themify Builder <= 7.7.7 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Post Stylesheet Write/Delete via tb_generate_on_fly AJAX Action

CVE-2026-15407 · themify-builder

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Themify Builder at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Themify Builder <= 7.7.7 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Post Stylesheet Write/Delete via tb_generate_on_fly AJAX Action
Affected software: themify-builder(Plugin)
Affected versions: ≤ 7.7.7
Authentication: Authenticated (see advisory title)
Vulnerability type: Other
CVE: CVE-2026-15407
Published: 15 July 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.
Source: Data imported from Wordfence Intelligence (advisory b59e2773-31f0-4c19-b066-30982761bc44). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Themify Builder version against this catalog when the Defence plugin is connected to your WordPress site.

Start SiteRespond Defence for WordPress — £29.99/monthScan your website

All Themify Builder advisoriesBack to catalog