Is CVE-2026-82814 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-82814 being exploited in the wild.

How severe is CVE-2026-82814?

High severity, with a CVSS score of 8.8, published 21 October 2026.

Which products and versions are affected?

Duplicator up to 1.5.17; Duplicator Pro up to 4.6.10.

Is there a fix for CVE-2026-82814?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-82814 attacked?

It is attacked over the network.

Am I affected by CVE-2026-82814?

Check whether you run Duplicator or Duplicator Pro at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-82814: Duplicator and Duplicator Pro PHP Object Injection

CVE-2026-82814 · Severity: high · CVSS 8.8 · Published 2026-10-21

Duplicator and Duplicator Pro are WordPress plugins that back up and migrate WordPress sites. These plugins contain a flaw that allows attackers to inject malicious code into the database before a site administrator creates a backup package and performs a migration. In Duplicator Free, this can lead to direct command execution on the server; in Duplicator Pro, an attacker could delete critical files like wp-config.php, exposing the installation setup and enabling site takeover.

Technologies: Duplicator, Duplicator Pro. Vendors: Duplicator.

Quick answers

Is CVE-2026-82814 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-82814 being exploited in the wild.
How severe is CVE-2026-82814?: High severity, with a CVSS score of 8.8, published 21 October 2026.
Which products and versions are affected?: Duplicator up to 1.5.17; Duplicator Pro up to 4.6.10.
Is there a fix for CVE-2026-82814?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-82814 attacked?: It is attacked over the network.
Am I affected by CVE-2026-82814?: Check whether you run Duplicator or Duplicator Pro at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a PHP Object Injection flaw in DUPX_UpdateEngine::unserializeTest() that deserializes untrusted database content without validation. An unauthenticated attacker can store a malicious serialized object in public site content before an administrator builds a package and performs a migration. Duplicator Free includes a Requests 1.7 POP chain enabling arbitrary callback execution and OS command execution; Duplicator Pro contains an IndexList destructor gadget that can delete arbitrary files in writable directories.

Affected products

Duplicator Duplicator up to 1.5.17
Duplicator Duplicator Pro up to 4.6.10

Timeline

2026-10-21: disclosed

References

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