Vulnerability record · CVE-2026-4029 · published 14 May 2026

CVE-2026-4029: Missing authorization vulnerability

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.

7.5 CVSS 3.1 High EPSS 0.50% · top 59.8% CWE-862 · Missing authorization Deferred

7.5CVSS 3.1 base score

0.50%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

5References

17 Jun 2026Last modified by NVD

Description

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

References

Link	Tags
https://plugins.trac.wordpress.org/browser/wp-db-backup/tags/2.5.2/wp-db-backup.php#L1623
https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#L153
https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#L1632
https://plugins.trac.wordpress.org/changeset/3510595/
https://www.wordfence.com/threat-intel/vulnerabilities/id/d4a21d0d-f455-4901-a04b-13c891cf8f75?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-4029), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.