CVE-2026-10749: Unknown Post Duplicator

High severity, CVSS 7.2. EPSS: 0.5% chance of exploitation in the next 30 days.

The Post Duplicator WordPress plugin before 3.0.15 does not safely handle custom meta-data during post duplication, storing attacker-supplied serialized values without the WordPress meta API's double-serialization protection, allowing users with Contributor-level access and above to inject a PHP Object.

Affected products

• Unknown Post Duplicator: before 3.0.15 (fixed in 3.0.15)

Published 2026-06-24. Last modified 2026-06-25.