CVE-2026-59544
Critical
Description
Unauthenticated PHP Object Injection in Thrive Quiz Builder <= 10.9.3.0 versions.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Thrive Quiz Builder
PublishedJul 23, 2026
First seenJul 23, 2026
Weakness typeCWE-502Deserialization of untrusted data
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Thrive Themes Coupon Thrive Quiz Builder | v ≤ 10.9.3.0 | — |
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