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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 authentication bypass vulnerability in MIPL WC Multisite Sync plugin versions up to 1.4.4 due to missing authorization checks. This article covers the technical details, affected versions, and mitigation.

Updated: May 14, 2026

CVE-2026-39705 Overview

CVE-2026-39705 is a missing authorization vulnerability in the MIPL WC Multisite Sync WordPress plugin developed by Mulika Team. The flaw affects all versions of mipl-wc-multisite-sync up to and including 1.4.4. Attackers can exploit incorrectly configured access control security levels to interact with plugin functionality without proper authorization checks. The vulnerability is classified under CWE-862 (Missing Authorization) and is exploitable over the network without authentication or user interaction. Successful exploitation impacts data integrity on affected WooCommerce multisite installations.

Critical Impact

Unauthenticated network attackers can bypass access control on affected WordPress sites running MIPL WC Multisite Sync ≤ 1.4.4, leading to low-impact integrity compromise of multisite synchronization data.

Affected Products

  • MIPL WC Multisite Sync WordPress plugin (mipl-wc-multisite-sync)
  • All versions from initial release through 1.4.4
  • WordPress sites using Mulika Team's WooCommerce multisite synchronization functionality

Discovery Timeline

  • 2026-04-08 - CVE-2026-39705 published to NVD
  • 2026-04-24 - Last updated in NVD database

Technical Details for CVE-2026-39705

Vulnerability Analysis

The MIPL WC Multisite Sync plugin exposes functionality without enforcing proper authorization checks on sensitive operations. Authorization failures of this class typically occur when plugin endpoints (AJAX handlers, REST routes, or admin-post actions) omit current_user_can() capability checks or fail to validate nonces tied to user roles. Attackers reach the vulnerable endpoints over the network without authentication.

The impact is scoped to integrity, with no direct confidentiality or availability consequences according to the published vector. Practically, this means an attacker can invoke plugin actions that modify state — such as triggering synchronization operations between WooCommerce multisite stores — without holding the role intended by the developer.

Root Cause

The root cause is an incorrectly configured access control security level within the plugin's request handlers. The plugin registers callable actions that lack capability or role verification, allowing requests from any caller to reach privileged code paths. This is a classic Broken Access Control pattern catalogued as CWE-862.

Attack Vector

An unauthenticated remote attacker sends crafted HTTP requests to the vulnerable plugin endpoints. Because the attack vector is Network with no privileges or user interaction required, exploitation can be automated against any reachable WordPress installation running the affected plugin. The Patchstack advisory referenced below documents the broken access control behavior. See the Patchstack Vulnerability Report for technical details. No verified public proof-of-concept code is currently available.

Detection Methods for CVE-2026-39705

Indicators of Compromise

  • Unexpected WooCommerce product, order, or store synchronization events in multisite environments
  • Unauthenticated POST or GET requests to mipl-wc-multisite-sync plugin endpoints, including admin-ajax.php actions tied to the plugin
  • Anomalous modifications to multisite store data without corresponding administrator session activity

Detection Strategies

  • Inventory WordPress installations and identify any running mipl-wc-multisite-sync plugin version ≤ 1.4.4
  • Inspect web server access logs for requests to plugin-specific AJAX actions or REST routes originating from anonymous sessions
  • Correlate plugin endpoint invocations with authentication state from WordPress audit logs to flag unauthenticated calls

Monitoring Recommendations

  • Enable verbose logging on WordPress sites to capture admin-ajax.php and REST API requests with originating IP and user context
  • Alert on synchronization activity occurring outside scheduled maintenance windows or expected administrator workflows
  • Forward web and application logs to a centralized analytics platform for cross-site correlation across multisite networks

How to Mitigate CVE-2026-39705

Immediate Actions Required

  • Identify all WordPress sites running MIPL WC Multisite Sync version 1.4.4 or earlier
  • Restrict network access to the WordPress admin and AJAX endpoints from untrusted networks where feasible
  • Deactivate the plugin until a vendor-supplied patched version is confirmed and installed

Patch Information

At the time of publication, the Patchstack advisory lists affected versions through 1.4.4 with no fixed version recorded in the NVD entry. Administrators should monitor the plugin's official distribution channel for a release that introduces capability checks and apply it as soon as it becomes available.

Workarounds

  • Deactivate and remove the mipl-wc-multisite-sync plugin until a fixed version is published
  • Place the WordPress administrative interface behind an IP allowlist or VPN to limit exposure of vulnerable endpoints
  • Deploy a Web Application Firewall (WAF) rule that blocks unauthenticated requests targeting plugin-specific AJAX actions and REST routes
bash
# Example WP-CLI commands to identify and deactivate the vulnerable plugin
wp plugin list --name=mipl-wc-multisite-sync --fields=name,status,version
wp plugin deactivate mipl-wc-multisite-sync

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

  • SeverityMEDIUM

  • CVSS Score5.3

  • EPSS Probability0.04%

  • Known ExploitedNo
  • CVSS Vector
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  • Impact Assessment
  • ConfidentialityLow
  • IntegrityNone
  • AvailabilityNone
  • CWE References
  • CWE-862
  • Technical References
  • Patchstack Vulnerability Report
  • Latest CVEs
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  • CVE-2026-2586: Eclipse Glassfish RCE Vulnerability

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