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New CVE Detected

CVE-2026-66424 – Unauthenticated Privilege Escalation – SMS Alert – SMS & OTP for WooCommerce (WordP

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Summary

CVE-2026-66424 is a critical unauthenticated privilege escalation vulnerability in the "SMS Alert Order Notifications" WordPress plugin (marketed as SMS Alert – SMS & OTP for WooCommerce), developed by Cozy Vision Technologies Pvt. Ltd. The flaw stems from incorrect privilege assignment (CWE-266) and allows a remote, unauthenticated attacker to gain elevated access on affected sites. It carries a CVSS v3.1 base score of 9.8 (Critical).

Technical details

  • Root cause: The plugin incorrectly assigns or validates user privileges (CWE-266: Incorrect Privilege Assignment) within its SMS/OTP-based authentication or order-notification workflow.
  • Trigger conditions: No authentication or user interaction is required to exploit the flaw; the vulnerable logic is reachable directly over the network.
  • Attack vector: Network-based (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N).
  • Impact: Full compromise of confidentiality, integrity, and availability (C:H/I:H/A:H) is possible, consistent with an attacker being able to escalate to a privileged account (e.g., administrator) on the affected WordPress/WooCommerce site.

Affected software

  • SMS Alert Order Notifications (SMS Alert – SMS & OTP for WooCommerce) WordPress plugin, versions up to and including 3.9.7.
  • Versions 3.9.8 and later are not affected.

Severity

  • CVSS v3.1 Base Score: 9.8 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Update the SMS Alert Order Notifications plugin to version 3.9.8 or later, where the privilege assignment flaw has been remediated.
  • If patching cannot be applied immediately: Consider temporarily deactivating the plugin on internet-facing WordPress/WooCommerce sites, restrict access to the WordPress admin and REST/AJAX endpoints associated with the plugin at the network or WAF layer, and monitor for unexpected creation of, or logins to, privileged accounts.

References

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