Vulnerability record · CVE-2026-1104 · published 12 February 2026

CVE-2026-1104: Missing authorization vulnerability

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.

8.8 CVSS 3.1 High EPSS 0.28% · top 82.0% CWE-862 · Missing authorization Deferred

8.8CVSS 3.1 base score

0.28%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

3References

17 Jun 2026Last modified by NVD

Description

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

References

Link	Tags
https://plugins.trac.wordpress.org/browser/fastdup/trunk/includes/Endpoint/PackageApi.php#L371
https://plugins.trac.wordpress.org/changeset/3449530/
https://www.wordfence.com/threat-intel/vulnerabilities/id/29c0fb4d-c38c-4c78-9e15-797f3c3a4b30?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-1104), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.