CVE-2026-4030
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.46% probability · 39th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Source
- security@wordfence.com
References
- 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#L121
- https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#L157
- 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/3e21b550-e1c5-4e23-9999-16c837353da9?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.