CVE-2026-82814 Duplicator <= 1.5.17 and Duplicator Pro <= 4.6.10 - Unauthenticated PHP Object Injection
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-82814?
CVE-2026-82814 is a high-severity vulnerability in Duplicator Pro, published on 21 Oct 2026.
Official description
The Duplicator and Duplicator Pro plugins for WordPress are vulnerable to PHP Object Injection in all versions up to, and including, 1.5.17 and 4.6.10, respectively, via deserialization of untrusted database content in DUPX_UpdateEngine::unserializeTest() during migration. This allows unauthenticated attackers to store a serialized object in public site content before an administrator builds a package and later performs a migration or import that runs database search-and-replace. Duplicator Free bundles a Requests 1.7 POP chain that permits attacker-selected callbacks, resulting in direct operating-system command execution. Duplicator Pro bundles an IndexList destructor gadget that permits deletion of an attacker-selected existing file when its containing directory is writable by the installer PHP process; deletion of wp-config.php can expose the setup wizard and lead to site takeover and code execution if the attacker reaches it first and supplies a reachable database they control. The package must be created after the carrier is stored, and a later administrator migration action is required.
Weakness: CWE-502
Which versions are affected by CVE-2026-82814?
How do I fix CVE-2026-82814?
No fix has been published for CVE-2026-82814 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-82814 being exploited?
There is no known exploitation of CVE-2026-82814 in the wild and no public exploit code.
Sources
Also known as CVE-2026-82823, GHSA-pq4f-mjh8-pjp9.