CVE-2026-66568: WordPress Original theme <= 1.9.0 - PHP Object Injection vulnerability
Published Oct 10, 2026
·Updated
Unauthenticated PHP Object Injection in Original <= 1.9.0 versions.
Affected Software
1 affected component
WordPress Original Theme<=1.9.0
Event History
Oct 10, 2026
CVE Published
via MITRE·07:36 PM
Data Sourced
via MITRE·07:36 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·08:16 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
Who can exploit this issue?
The issue is unauthenticated, so an attacker does not need a WordPress account or other prior privileges to attempt exploitation.
2
Which deployments are affected?
WordPress sites using the Original theme at version 1.9.0 or earlier are affected according to the available information.
3
What is the potential impact?
The listed CVSS vector indicates network-reachable exploitation with low attack complexity and potential high impact on confidentiality, integrity, and availability.