CVE-2026-1104
CWE-862Published: February 12, 2026· Updated: Feb 13, 2026
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.
Technical Analysis
CVE-2026-1104 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
All References (3)
Quick Facts
Related CVEs (CWE-862)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-1104 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts