CVE-2026-1104 Missing authorization in FastDup – Fastest WordPress Migration & Duplicator
Authenticated contributors can create and download full-site backups due to missing capability checks in the FastDup WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-1104?
CVE-2026-1104 is a high-severity missing authorization vulnerability in ninjateam FastDup – Fastest WordPress Migration & Duplicator, published on 12 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-1104?
How do I fix CVE-2026-1104?
No fix has been published for CVE-2026-1104 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-1104 being exploited?
There is no known exploitation of CVE-2026-1104 in the wild and no public exploit code.
Sources
Also known as GHSA-x64q-5pj8-ccxv.