CVE-2025-15507: WordPress Magic Import Auth Bypass Flaw

CVE-2025-15507 Overview

The Magic Import Document Extractor plugin for WordPress contains a Missing Authorization vulnerability (CWE-862) in all versions up to and including 1.0.4. The vulnerability exists due to a missing capability check on the ajax_sync_usage() function, which allows unauthenticated attackers to modify the plugin's license status and credit balance without proper authorization.

Critical Impact

Unauthenticated attackers can manipulate plugin licensing and credit data, potentially enabling unauthorized feature access or disrupting plugin functionality for legitimate users.

Affected Products

• Magic Import Document Extractor plugin for WordPress versions up to and including 1.0.4

Discovery Timeline

• 2026-02-04 - CVE-2025-15507 published to NVD
• 2026-02-04 - Last updated in NVD database

Technical Details for CVE-2025-15507

Vulnerability Analysis

This vulnerability stems from a fundamental access control flaw in the Magic Import Document Extractor WordPress plugin. The ajax_sync_usage() function, located in the plugin's public-facing class file at public/class-public.php, lacks proper capability verification before processing requests. WordPress plugins should implement capability checks using functions like current_user_can() to ensure only authorized users can execute sensitive operations.

Without this authorization check, the AJAX endpoint becomes accessible to any visitor, regardless of their authentication status. This allows attackers to send crafted requests to manipulate the plugin's internal state, specifically targeting license validation and credit balance mechanisms.

Root Cause

The root cause of CVE-2025-15507 is Missing Authorization (CWE-862). The ajax_sync_usage() function fails to verify that the requesting user has appropriate WordPress capabilities before performing data modification operations. WordPress security best practices mandate that all AJAX handlers performing sensitive operations must include capability checks to restrict access to authorized users only.

The vulnerable code path can be examined in the WordPress Plugin Class File, which shows the function processing requests without first validating user permissions.

Attack Vector

The attack can be executed remotely over the network without requiring any authentication or user interaction. An attacker can craft HTTP requests to the WordPress AJAX handler (admin-ajax.php) with the appropriate action parameter to trigger the vulnerable ajax_sync_usage() function. Since no authentication is required, the attacker simply needs to know the target WordPress site's URL.

The attacker can manipulate:

• Plugin license status (potentially unlocking premium features)
• Credit balance values (bypassing usage limitations)

This type of attack is particularly concerning because it can be automated and scaled across multiple WordPress installations using the vulnerable plugin version.

Detection Methods for CVE-2025-15507

Indicators of Compromise

• Unexpected changes to the Magic Import Document Extractor plugin's license status or credit balance
• Anomalous POST requests to wp-admin/admin-ajax.php with action parameters targeting ajax_sync_usage
• Log entries showing unauthenticated requests to plugin-specific AJAX endpoints
• Unauthorized modifications to plugin options in the wp_options database table

Detection Strategies

• Monitor WordPress AJAX requests for suspicious calls to the ajax_sync_usage action from unauthenticated sessions
• Implement Web Application Firewall (WAF) rules to detect and block unauthorized AJAX requests targeting known vulnerable endpoints
• Review access logs for patterns of requests to admin-ajax.php that lack valid WordPress authentication cookies
• Deploy file integrity monitoring to detect unauthorized changes to plugin configuration data

Monitoring Recommendations

• Enable detailed logging for WordPress AJAX handlers and monitor for unusual request patterns
• Configure alerts for changes to plugin licensing or credit-related database entries
• Implement rate limiting on AJAX endpoints to slow automated exploitation attempts
• Use SentinelOne Singularity platform to monitor for web shell deployments or follow-up attacks that may result from initial access

How to Mitigate CVE-2025-15507

Immediate Actions Required

• Update the Magic Import Document Extractor plugin to a patched version if available
• Temporarily deactivate the plugin if no patch is available and the functionality is not critical
• Implement WAF rules to block unauthenticated requests to the vulnerable AJAX endpoint
• Audit plugin license and credit balance settings to identify any unauthorized modifications
• Review WordPress user accounts and permissions for any signs of compromise

Patch Information

Check the WordPress plugin repository for updated versions of the Magic Import Document Extractor plugin that include proper capability checks on the ajax_sync_usage() function. The Wordfence Vulnerability Analysis provides additional details about the vulnerability and remediation guidance.

Workarounds

• Restrict access to admin-ajax.php for unauthenticated users at the web server level (note: this may break legitimate plugin functionality)
• Use a security plugin like Wordfence to implement virtual patching for the vulnerable endpoint
• Deploy IP-based access controls to limit which networks can reach the WordPress admin interface
• Consider removing the plugin entirely if it is not essential to site operations

# Example: Block unauthenticated AJAX requests to the vulnerable action using .htaccess
# Add to WordPress root .htaccess file
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_URI} ^/wp-admin/admin-ajax\.php$ [NC]
RewriteCond %{QUERY_STRING} action=ajax_sync_usage [NC]
RewriteCond %{HTTP_COOKIE} !wordpress_logged_in [NC]
RewriteRule .* - [F,L]
</IfModule>