CVE-2026-27368: SeedProd Authorization Bypass Vulnerability

CVE-2026-27368 Overview

A Missing Authorization vulnerability has been identified in the SeedProd Coming Soon Page, Under Construction & Maintenance Mode WordPress plugin. This security flaw (CWE-862) allows attackers to exploit incorrectly configured access control security levels, potentially enabling unauthorized access to protected functionality or resources within the plugin.

The vulnerability stems from missing or improper authorization checks within the plugin's access control implementation. When exploited, attackers may be able to bypass intended access restrictions and perform actions that should require proper authentication or elevated privileges.

Critical Impact

Attackers can exploit broken access control mechanisms to bypass security restrictions in the SeedProd Coming Soon plugin, potentially affecting WordPress sites using maintenance or coming soon pages.

Affected Products

• SeedProd Coming Soon Page, Under Construction & Maintenance Mode by SeedProd plugin versions through 6.19.7
• WordPress installations with the affected coming-soon plugin installed
• Sites utilizing SeedProd maintenance mode or under construction functionality

Discovery Timeline

• 2026-02-19 - CVE CVE-2026-27368 published to NVD
• 2026-02-19 - Last updated in NVD database

Technical Details for CVE-2026-27368

Vulnerability Analysis

This vulnerability falls under CWE-862 (Missing Authorization), which occurs when a software component does not perform authorization checks when an actor attempts to access a resource or perform an action. In the context of the SeedProd Coming Soon plugin, this means that certain functionality that should be restricted to authorized users can potentially be accessed by unauthenticated or lower-privileged users.

The broken access control vulnerability allows attackers to exploit incorrectly configured access control security levels. This type of flaw is particularly concerning in WordPress plugins as they often handle sensitive site configuration and content management functions. Without proper authorization checks, attackers could potentially modify plugin settings, access protected pages, or perform administrative actions without proper credentials.

Root Cause

The root cause of this vulnerability is the absence of proper authorization verification within the plugin's access control mechanisms. The plugin fails to adequately verify that users have the necessary permissions before allowing access to protected functionality. This represents a fundamental security oversight in the plugin's design where capability checks are either missing entirely or improperly implemented for certain actions or endpoints.

Attack Vector

An attacker can exploit this vulnerability by directly accessing plugin functionality that lacks proper authorization checks. Since this is a broken access control issue, the attack typically involves:

1. Identifying endpoints or functions within the plugin that perform sensitive operations
2. Crafting requests to these endpoints without valid authentication or with insufficient privileges
3. Bypassing the intended access control mechanisms to perform unauthorized actions

The vulnerability affects WordPress sites running versions of the SeedProd Coming Soon plugin up to and including version 6.19.7. Successful exploitation could allow unauthorized users to access or modify coming soon page settings, maintenance mode configurations, or other protected plugin functionality.

For detailed technical information about the vulnerability mechanism, refer to the Patchstack Vulnerability Report.

Detection Methods for CVE-2026-27368

Indicators of Compromise

• Unexpected modifications to coming soon page or maintenance mode settings without administrator action
• Unauthorized access attempts to WordPress admin endpoints related to the SeedProd plugin
• Unusual HTTP requests targeting wp-admin or wp-json endpoints associated with the coming-soon plugin
• Changes to plugin configuration files or database entries without corresponding administrative activity

Detection Strategies

• Monitor WordPress admin activity logs for unauthorized access to SeedProd plugin settings
• Implement web application firewall (WAF) rules to detect suspicious requests targeting the coming-soon plugin endpoints
• Review server access logs for unusual patterns of requests to plugin-specific URLs
• Deploy file integrity monitoring to detect unauthorized changes to plugin files

Monitoring Recommendations

• Enable WordPress audit logging to track all plugin configuration changes
• Configure alerts for unauthorized modifications to maintenance mode or coming soon page settings
• Implement real-time monitoring of WordPress REST API requests to plugin endpoints
• Regularly review user access patterns and identify anomalous administrative activities

How to Mitigate CVE-2026-27368

Immediate Actions Required

• Update the SeedProd Coming Soon Page plugin to the latest patched version immediately
• Review recent plugin activity logs for any signs of unauthorized access or configuration changes
• Temporarily disable the plugin if an update is not yet available until a patch is released
• Implement additional access controls at the web server level to restrict access to plugin functionality

Patch Information

Organizations should monitor the Patchstack Vulnerability Report for the latest patch information. Ensure the plugin is updated beyond version 6.19.7 to address this vulnerability. Check the WordPress plugin repository for the latest secure release from SeedProd.

Workarounds

• Restrict access to WordPress admin areas using IP allowlisting at the server or firewall level
• Implement a Web Application Firewall (WAF) with rules to block suspicious requests to the coming-soon plugin
• Disable the SeedProd plugin temporarily if the maintenance mode functionality is not immediately required
• Add additional authentication layers such as HTTP Basic Authentication for the WordPress admin directory

# Example .htaccess rules to restrict plugin access (Apache)
# Add to WordPress root .htaccess file
<IfModule mod_rewrite.c>
RewriteEngine On
# Block direct access to plugin files for non-admins
RewriteCond %{REQUEST_URI} ^/wp-content/plugins/coming-soon/ [NC]
RewriteCond %{HTTP_COOKIE} !wordpress_logged_in [NC]
RewriteRule .* - [F,L]
</IfModule>