CVE-2026-4031

Published: Mag 14, 2026 Last Modified: Mag 14, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,5
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none

Description

AI Translation Available

The Database Backup for WordPress plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.5.2. This is due to the plugin not restricting access to the wp_db_temp_dir parameter, which controls where database backups are written. This makes it possible for unauthenticated attackers to send a request to wp-cron.php with a poisoned wp_db_temp_dir value pointing to a publicly accessible directory (e.g., wp-content/uploads/), and if a scheduled backup is due, intercept the backup file before it is cleaned up. The backup file has a predictable name based on the database name, table prefix, date, and Swatch Internet Time, making interception reliable. Successful exploitation leads to Sensitive Information Exposure including database credentials, user password hashes, and personally identifiable information. This vulnerability requires that the site administrator has configured scheduled backups.

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
0,0008
Percentile
0,2th
Updated

EPSS Score Trend (Last 6 Days)

862

Missing Authorization

Incomplete
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
View CWE Details
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/trunk/wp-db-backup.php#…
https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#…
https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#…
https://plugins.trac.wordpress.org/browser/wp-db-backup/trunk/wp-db-backup.php#…
https://plugins.trac.wordpress.org/changeset/3510595/
https://www.wordfence.com/threat-intel/vulnerabilities/id/36615cae-418f-48b0-ba…