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CVE Vulnerability Database
Vulnerability Database/CVE-2026-39705

CVE-2026-39705: MIPL WC Multisite Sync Auth Bypass Flaw

CVE-2026-39705 is an authorization bypass vulnerability in the MIPL WC Multisite Sync WordPress plugin that enables unauthorized access through misconfigured security levels. This article covers technical details, affected versions, and mitigation.

Published: April 10, 2026

CVE-2026-39705 Overview

CVE-2026-39705 is a Missing Authorization vulnerability (CWE-862) affecting the MIPL WC Multisite Sync WordPress plugin developed by Mulika Team. This vulnerability allows attackers to exploit incorrectly configured access control security levels, potentially enabling unauthorized actions within WordPress multisite environments. The flaw stems from broken access control mechanisms that fail to properly verify user permissions before executing sensitive operations.

Critical Impact

Unauthorized users may be able to perform privileged actions within the WordPress multisite synchronization functionality, potentially leading to data manipulation, unauthorized configuration changes, or cross-site data access.

Affected Products

  • MIPL WC Multisite Sync plugin version 1.4.4 and earlier
  • WordPress multisite installations using the mipl-wc-multisite-sync plugin

Discovery Timeline

  • 2026-04-08 - CVE-2026-39705 published to NVD
  • 2026-04-08 - Last updated in NVD database

Technical Details for CVE-2026-39705

Vulnerability Analysis

This vulnerability is classified as a Missing Authorization flaw (CWE-862), which occurs when an application does not perform adequate authorization checks before executing privileged functions. In the context of the MIPL WC Multisite Sync plugin, this weakness allows attackers to bypass intended access control restrictions and interact with synchronization functionality without proper authentication or role verification.

WordPress multisite synchronization plugins typically handle sensitive operations such as product data synchronization, inventory management, and cross-site configuration updates. When authorization checks are missing or improperly implemented, unauthenticated or low-privileged users can potentially trigger these operations, leading to unauthorized data modifications across networked WordPress sites.

Root Cause

The root cause of CVE-2026-39705 lies in the failure to implement proper capability checks within the plugin's AJAX handlers or REST API endpoints. WordPress plugins should validate user permissions using functions like current_user_can() before processing requests. When these checks are absent or incorrectly configured, the plugin accepts and processes requests from users who should not have access to the functionality.

The vulnerability classification as "Exploiting Incorrectly Configured Access Control Security Levels" indicates that the plugin may rely on assumptions about default WordPress security configurations rather than implementing explicit authorization verification for each sensitive operation.

Attack Vector

An attacker can exploit this vulnerability by sending crafted requests directly to the vulnerable plugin endpoints. Since authorization checks are missing, the attacker does not need to authenticate or possess any specific WordPress role to execute privileged actions. The attack can be performed remotely through standard HTTP requests to the affected WordPress installation.

The exploitation typically involves:

  1. Identifying the vulnerable AJAX action or REST endpoint exposed by the plugin
  2. Crafting a malicious request that triggers the synchronization or configuration functionality
  3. Submitting the request without proper authentication credentials
  4. The plugin processes the request due to missing authorization checks, executing the privileged operation

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

Detection Methods for CVE-2026-39705

Indicators of Compromise

  • Unexpected modifications to WooCommerce product data or inventory across multisite installations
  • Unusual AJAX or REST API requests to mipl-wc-multisite-sync endpoints from unauthenticated sources
  • Log entries showing synchronization operations initiated without corresponding admin user sessions
  • Unauthorized changes to multisite synchronization settings or configurations

Detection Strategies

  • Monitor WordPress access logs for suspicious requests to plugin-specific endpoints containing mipl-wc-multisite-sync or related action parameters
  • Implement Web Application Firewall (WAF) rules to detect and block unauthenticated requests to known vulnerable plugin endpoints
  • Review WordPress audit logs for synchronization events that lack associated administrator authentication
  • Deploy intrusion detection signatures targeting broken access control exploitation patterns in WordPress environments

Monitoring Recommendations

  • Enable comprehensive logging for all WordPress AJAX and REST API requests, particularly those targeting third-party plugins
  • Configure alerts for bulk data modification events across multisite installations that occur outside normal business hours
  • Implement real-time monitoring of WordPress user session activity to correlate administrative actions with authenticated sessions
  • Utilize SentinelOne's Singularity Platform to monitor for suspicious process execution and file modifications on WordPress hosting infrastructure

How to Mitigate CVE-2026-39705

Immediate Actions Required

  • Audit your WordPress installations to identify if MIPL WC Multisite Sync plugin version 1.4.4 or earlier is installed
  • Consider temporarily disabling the mipl-wc-multisite-sync plugin until a patched version is available
  • Implement additional access controls at the web server or WAF level to restrict access to plugin endpoints
  • Review multisite data integrity to identify any potential unauthorized modifications

Patch Information

As of the vulnerability disclosure date, administrators should check for updated versions of the MIPL WC Multisite Sync plugin from the official WordPress plugin repository or directly from Mulika Team. Refer to the Patchstack advisory for the latest patch status and remediation guidance.

Workarounds

  • Restrict access to WordPress admin-ajax.php and REST API endpoints at the web server level using IP whitelisting for trusted administrators
  • Implement a WordPress security plugin that provides additional capability checks and access control enforcement
  • Temporarily disable the plugin's synchronization features through database configuration if the plugin cannot be fully deactivated
  • Consider using a maintenance mode or restricting site access until the vulnerability can be properly remediated
bash
# Apache .htaccess example to restrict plugin endpoint access
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{REQUEST_URI} mipl-wc-multisite-sync [NC]
    RewriteCond %{REMOTE_ADDR} !^192\.168\.1\.100$
    RewriteRule .* - [F,L]
</IfModule>

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

  • Vulnerability Details
  • TypeAuth Bypass

  • Vendor/TechMipl Wc Multisite Sync

  • SeverityNONE

  • CVSS ScoreN/A

  • EPSS Probability0.02%

  • Known ExploitedNo
  • Impact Assessment
  • ConfidentialityNone
  • IntegrityNone
  • AvailabilityNone
  • CWE References
  • CWE-862
  • Technical References
  • Patchstack WordPress Vulnerability Report
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