CVE-2026-82814 Duplicator CVE debrief

Who should care

WordPress administrators, security teams, and IT professionals responsible for maintaining WordPress installations with the Duplicator and Duplicator Pro plugins should assess exposure and prioritize patching.

Why it matters

CVE-2026-82814 is a high-severity vulnerability in Duplicator and Duplicator Pro plugins for WordPress, allowing unauthenticated PHP Object Injection. Defenders should prioritize verifying exposure, assessing migration processes, and applying patches to prevent potential code execution, file deletion, and site takeover.

• Potential for unauthenticated PHP code execution
• Possible deletion of critical files like wp-config.php
• Exposure of sensitive setup wizard and potential site takeover
• Verification of migration and import processes for vulnerabilities

Technical summary

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. 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. The vulnerability can lead to potential code execution, file deletion, and site takeover if an attacker can supply a reachable database they control.

Defensive priority

Defenders should prioritize verifying exposure of Duplicator and Duplicator Pro plugins, assessing migration and import processes, and applying vendor patches.

Recommended defensive actions

• Verify exposure of Duplicator and Duplicator Pro plugins in WordPress installations
• Assess migration and import processes for potential vulnerabilities
• Apply vendor patches for Duplicator and Duplicator Pro plugins
• Monitor for suspicious activity related to PHP Object Injection
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details on the vulnerability, affected versions, and potential impacts. However, additional information on exploitation and victim impact is limited. Defenders should verify the exposure of Duplicator and Duplicator Pro plugins in WordPress installations, assess migration and import processes for potential vulnerabilities, and apply vendor patches. The vulnerability allows unauthenticated attackers to store a serialized object in public site content, which can lead to potential code execution,

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.