---
title: "CVE-2026-82814: Duplicator WordPress Plugin - Insecure Deserialization"
description: "Duplicator and Duplicator Pro WordPress plugins <= 1.5.17 and 4.6.10 contain a PHP Object Injection caused by deserialization of untrusted database content in DUPX_UpdateEngine::unserializeTest(), letting unauthenticated attackers execute OS commands or delete files during migration, exploit requires administrator to perform migration after attacker stores serialized object."
url: https://panop.io/threat-heartbeat/CVE-2026-82814/
---

# CVE-2026-82814 Duplicator WordPress Plugin - Insecure Deserialization

Duplicator and Duplicator Pro WordPress plugins <= 1.5.17 and 4.6.10 contain a PHP Object Injection caused by deserialization of untrusted database content in DUPX\_UpdateEngine::unserializeTest(), letting unauthenticated attackers execute OS commands or delete files during migration, exploit requires administrator to perform migration after attacker stores serialized object.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-82814)

## Details

Type

Insecure Deserialization

Impact

Remote Code Execution, File System Write, Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Published

21 October 2026

Updated

21 October 2026

Weakness

[CWE-502](https://cwe.mitre.org/data/definitions/502.html)

## Vendor fix

Update to versions later than 1.5.17 for Duplicator and 4.6.10 for Duplicator Pro or latest available versions.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-82814](https://nvd.nist.gov/vuln/detail/CVE-2026-82814)
- [https://plugins.trac.wordpress.org/changeset/3687092/duplicator](https://plugins.trac.wordpress.org/changeset/3687092/duplicator)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/767fb03a-58a3-464b-98b2-5378cfec09ae?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/767fb03a-58a3-464b-98b2-5378cfec09ae?source=cve)
- [https://duplicator.com/knowledge-base/changelog/#v5-0-0](https://duplicator.com/knowledge-base/changelog/#v5-0-0)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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