WordPress Thrive Quiz Builder plugin <= 10.9.3.0 - PHP Object Injection vulnerability
Summary
| CVE | CVE-2026-59544 |
|---|---|
| State | PUBLISHED |
| Assigner | Patchstack |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-23 12:18:33 UTC |
| Updated | 2026-07-23 13:21:17 UTC |
| Description | Unauthenticated PHP Object Injection in Thrive Quiz Builder <= 10.9.3.0 versions. |
Risk And Classification
Primary CVSS: v3.1 9.8 CRITICAL from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Problem Types: CWE-502 | CWE-502 CWE-502 Deserialization of Untrusted Data
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Thrive Themes Coupon | Thrive Quiz Builder | affected n/a 10.9.3.0 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| patchstack.com/database/wordpress/plugin/thrive-quiz-builder/vulnerability/w... | [email protected] | patchstack.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: VanTastic | Patchstack Bug Bounty Program (en)
Additional Advisory Data
Solutions
CNA: Update the WordPress Thrive Quiz Builder Plugin to the latest available version (at least 10.9.3.1).
There are currently no legacy QID mappings associated with this CVE.