CVE-2026-4029: CWE-862 Missing Authorization in wpengine Database Backup for WordPress
The Database Backup for WordPress plugin (up to version 2.5.2) contains a vulnerability that allows unauthenticated attackers to export database tables without proper authorization. This issue arises because the plugin fails to correctly enforce the return value of its authorization check. The vulnerability is specifically exploitable only in WordPress Multisite environments where the deprecated is_site_admin() function is present. Exploitation can lead to exposure of sensitive information from the database.
AI Analysis
Technical Summary
CVE-2026-4029 is a high-severity vulnerability in the Database Backup for WordPress plugin by wpengine. The flaw is due to missing authorization enforcement, allowing unauthenticated users to export database tables. This occurs because the plugin does not properly validate the authorization check return value. The vulnerability affects all plugin versions up to and including 2.5.2 and is limited to WordPress Multisite setups using the deprecated is_site_admin() function. The CVSS 3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and high confidentiality impact.
Potential Impact
An attacker without any privileges can export database tables, potentially exposing sensitive information stored in the WordPress database. This exposure can compromise confidentiality but does not affect integrity or availability. The vulnerability is limited to multisite WordPress environments with the deprecated is_site_admin() function, reducing the scope of affected installations.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently available. Until a patch is released, administrators of WordPress Multisite environments using this plugin should consider disabling the plugin or restricting access to trusted users only. Monitoring vendor channels for updates is recommended.
CVE-2026-4029: CWE-862 Missing Authorization in wpengine Database Backup for WordPress
Description
The Database Backup for WordPress plugin (up to version 2.5.2) contains a vulnerability that allows unauthenticated attackers to export database tables without proper authorization. This issue arises because the plugin fails to correctly enforce the return value of its authorization check. The vulnerability is specifically exploitable only in WordPress Multisite environments where the deprecated is_site_admin() function is present. Exploitation can lead to exposure of sensitive information from the database.
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-4029 is a high-severity vulnerability in the Database Backup for WordPress plugin by wpengine. The flaw is due to missing authorization enforcement, allowing unauthenticated users to export database tables. This occurs because the plugin does not properly validate the authorization check return value. The vulnerability affects all plugin versions up to and including 2.5.2 and is limited to WordPress Multisite setups using the deprecated is_site_admin() function. The CVSS 3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and high confidentiality impact.
Potential Impact
An attacker without any privileges can export database tables, potentially exposing sensitive information stored in the WordPress database. This exposure can compromise confidentiality but does not affect integrity or availability. The vulnerability is limited to multisite WordPress environments with the deprecated is_site_admin() function, reducing the scope of affected installations.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently available. Until a patch is released, administrators of WordPress Multisite environments using this plugin should consider disabling the plugin or restricting access to trusted users only. Monitoring vendor channels for updates is recommended.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-03-12T00:07:50.008Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a05c8f4ec166c07b0dcb796
Added to database: 05/14/2026, 13:07:00 UTC
Last enriched: 05/21/2026, 15:47:49 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 95
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