CVE-2026-4030
HIGH EPSS 36.8%
Published May 14, 20261mo ago · Modified Jun 17, 20261w ago
8.1 CVSS 3.1
Published May 14, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
36.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-862 Missing Authorization Authorization
References 6
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-db-backup/tags/2.5.2/wp-db-backup.php#L1623
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#L121
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#L157
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#L1632
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3510595/
- wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/3e21b550-e1c5-4e23-9999-16c837353da9?source=cve
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.