WordPress security changelog
HIGH CVE-2026-4030 Deferred

Database Backup for WordPress: Filesystem traversal

Database Backup for WordPress is affected by filesystem traversal. The vulnerable path is reachable without authentication. A crafted path can escape the intended directory and reach files or directories elsewhere on the server. The published affected range is <= 2.5.2.

CVE / CNA score 8.1 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Database Backup for WordPress
Plugin slug
wp-db-backup
Affected
<= 2.5.2
Safe version
> 2.5.2
Published
May 14, 2026
Weakness
CWE-862 — Missing Authorization

This CVE was published May 14, 2026 and is one of 4 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Database Backup for WordPress to a release after 2.5.2, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical 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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Primary and upstream sources