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CVE-2026-27330 – Unauthenticated Broken Access Control – Mobile App for WooCommerce ≤ 0.4.62

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Summary

CVE-2026-27330 is a high-severity (CVSS 8.6) Missing Authorization (CWE-862) vulnerability affecting the "Mobile App for WooCommerce" WordPress plugin (published by Weptile/ShopApper as a native mobile app builder service for WooCommerce stores). The flaw allows unauthenticated, remote attackers to bypass access controls on plugin functionality that should be restricted to authorized users. All installations running version 0.4.62 or earlier are affected; the issue was fixed in version 0.4.63.

Technical details

  • Root cause: One or more of the plugin’s REST/AJAX endpoints fail to enforce proper authorization checks (CWE-862, Missing Authorization), allowing requests to reach protected functionality without validating that the requesting party has the necessary permissions.
  • Trigger conditions: An attacker sends a crafted, unauthenticated HTTP request to the affected plugin endpoint(s) on a WordPress site running the vulnerable plugin version; no credentials, prior access, or user interaction are required.
  • Attack vector: Network — exploitable remotely over HTTP/HTTPS against any internet-facing WordPress site running the vulnerable plugin.
  • Impact: Successful exploitation allows an unauthenticated actor to bypass intended access-control restrictions, resulting in confidentiality impact (High) and limited integrity/availability impact, per the associated CVSS vector. This can expose store or customer data and/or allow unauthorized actions against affected functionality without needing valid credentials.

Affected software

  • Product: Mobile App for WooCommerce (WordPress plugin), vendor: Weptile / ShopApper
  • Vulnerable versions: All versions up to and including 0.4.62
  • Fixed version: 0.4.63 and later

Severity

  • CVSS v3.1 Base Score: 8.6 (High)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Mitigation and recommended actions

  • Immediate: Upgrade the "Mobile App for WooCommerce" plugin to version 0.4.63 or later, which restores proper authorization enforcement on the affected functionality.
  • If immediate patching is not possible:
    • Restrict or monitor access to the plugin’s REST/AJAX endpoints at the WAF or reverse-proxy layer until the update can be applied.
    • Audit recent site and order/customer data access logs for anomalous unauthenticated requests to plugin endpoints.
    • Consider temporarily deactivating the plugin on internet-facing sites if patching cannot be performed promptly, given the lack of authentication required for exploitation.

References

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