CVE-2026-59544
WordPress Thrive Quiz Builder plugin <= 10.9.3.0 - PHP Object Injection vulnerability
Unauthenticated PHP Object Injection in Thrive Quiz Builder <= 10.9.3.0 versions.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
WordPress Thrive Quiz Builder plugin <= 10.9.3.0 - PHP Object Injection vulnerability
Unauthenticated PHP Object Injection in Thrive Quiz Builder <= 10.9.3.0 versions.
- Record
CVE-2026-59544- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
EUVDEUVD-2026-48197
Unauthenticated PHP Object Injection in Thrive Quiz Builder <= 10.9.3.0 versions.
- Record
EUVD-2026-48197- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-3pxr-wpfc-92h9
Unauthenticated PHP Object Injection in Thrive Quiz Builder <= 10.9.3.0 versions.
Unauthenticated PHP Object Injection in Thrive Quiz Builder <= 10.9.3.0 versions.
- Record
GHSA-3pxr-wpfc-92h9- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
Unauthenticated PHP Object Injection in Thrive Quiz Builder <= 10.9.3.0 versions.
- Record
CVE-2026-59544- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-59544 is a critical vulnerability (CVSS 9.8) in Thrive Themes Quiz Builder, published July 23, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.56%, the 47th percentile. No source names a fixed version.