Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-4030 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

The Database Backup for WordPress plugin for WordPress is vulnerable to unauthorized arbitrary file read and deletion 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 combined with a user-controlled backup directory parameter. This makes it possible for unauthenticated attackers to read and delete arbitrary files on the server, leading to Sensitive Information Exposure and potential site takeover. Note: This vulnerability is only exploitable in WordPress Multisite environments where the deprecated is_site_admin() function exists.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:8.7 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

CNA: [email protected]CVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://plugins.trac.wordpress.org/browser/wp-db-backup/tags/2.5.2/wp-db-backup.php#L1623	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#L121	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#L157	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#L1632	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/changeset/3510595/	[email protected]	Source CodeVendor
https://www.wordfence.com/threat-intel/vulnerabilities/id/3e21b550-e1c5-4e23-9999-16c837353da9?source=cve	[email protected]	AdvisoryBundleRemedy

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-862	Missing Authorization	[email protected]

Affected Products

Product	Versions
Delicious Brains Database Backup	<= 2.5.2 (semver)
CPE cpe:2.3:a:deliciousbrains:database_backup::::::wordpress::* Remediation Upgrade: 2.5.3moderate effort

Change History

3 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
May 14, 2026	New CVE Received	[email protected]