CVE-2026-4030

Published: Mag 14, 2026 Last Modified: Mag 14, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,1
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0015
Percentile
0,3th
Updated

EPSS Score Trend (Last 6 Days)

862

Missing Authorization

Incomplete
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Access Control Availability
Potential Impacts:
Read Application Data Read Files Or Directories Modify Application Data Modify Files Or Directories Gain Privileges Or Assume Identity Bypass Protection Mechanism Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Other)
Applicable Platforms
Technologies: AI/ML, Web Server, Database Server, Not Technology-Specific
Likelihood of Exploit: High
View CWE Details
https://plugins.trac.wordpress.org/browser/wp-db-backup/tag…
https://plugins.trac.wordpress.org/browser/wp-db-backup/tags/2.5.2/wp-db-backup…
https://plugins.trac.wordpress.org/browser/wp-db-backup/tru…
https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#…
https://plugins.trac.wordpress.org/browser/wp-db-backup/tru…
https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#…
https://plugins.trac.wordpress.org/browser/wp-db-backup/tru…
https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#…
https://plugins.trac.wordpress.org/changeset/3510595/
https://plugins.trac.wordpress.org/changeset/3510595/
https://www.wordfence.com/threat-intel/vulnerabilities/id/3…
https://www.wordfence.com/threat-intel/vulnerabilities/id/3e21b550-e1c5-4e23-99…