FastDup – Fastest WordPress Migration & Duplicator: A security weakness
FastDup – Fastest WordPress Migration & Duplicator is affected by a security weakness. Exploitation requires at least contributor-level access. The resulting impact depends on how the affected component exposes the vulnerable operation.
- Component
- FastDup – Fastest WordPress Migration & Duplicator
- Plugin slug
fastdup- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Feb 12, 2026
- Weakness
- CWE-862 — Missing Authorization
This CVE was published Feb 12, 2026 and is one of 5 known issues for this plugin.
Update, patch or deactivate.
Update FastDup – Fastest WordPress Migration & Duplicator to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The FastDup – Fastest WordPress Migration & Duplicator plugin for WordPress is vulnerable to unauthorized backup creation and download due to a missing capability check on REST API endpoints in all versions up to, and including, 2.7.1. This makes it possible for authenticated attackers, with Contributor-level access and above, to create and download full-site backup archives containing the entire WordPress installation, including database exports and configuration files.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H