Auth bypass in Wpengine Database Backup For WordPress
CVE-2026-4029
The Database Backup for WordPress plugin for WordPress is vulnerable to unauthorized database export in all versions up to, and including, 2.5.2. This is due to the plugin not properly enforcing the return value of its authorization check. This makes it possible for unauthenticated attackers to export database tables, leading to Sensitive Information Exposure. Note: This vulnerability is only exploitable in WordPress Multisite environments where the deprecated is_site_admin() function exists.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (40.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001
Affected products
- Wpengine Database Backup For WordPress — versions 0
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/d4a21d0d-f455-4901-a04b-13c89…
- plugins.trac.wordpress.org/browser/wp-db-backup/tags/2.5.2/wp-db-backup.php
- plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php
- plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php
- plugins.trac.wordpress.org/changeset/3510595/
Frequently asked questions
- What is CVE-2026-4029?
- CVE-2026-4029 is a high-severity vulnerability in Wpengine Database Backup For WordPress, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-05-14.
- How severe is CVE-2026-4029?
- High severity. CVSS v3 base score is 7.5 out of 10.