Threat intelligence

Thrive Quiz Builder <= 10.9.3.0 - Unauthenticated PHP Object Injection

CVE-2026-59544 · thrive-quiz-builder

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

Vulnerability: Thrive Quiz Builder <= 10.9.3.0 - Unauthenticated PHP Object Injection
Affected software: thrive-quiz-builder(Plugin)
Affected versions: ≤ 10.9.3.0
Authentication: Unauthenticated
Vulnerability type: Other
CVE: CVE-2026-59544
Published: 22 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 e3bb083c-af58-41f3-a14a-f45408e18d72). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Thrive Quiz 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 Thrive Quiz Builder advisoriesBack to catalog