CyberSecBulletin
CVE-2026-11387NVD status: Deferred

SMS Alert – SMS & OTP for WooCommerce, Order…: Improper Authentication

Published Updated By the CyberSecBulletin desk

CVE-2026-11387 is a critical-severity improper authentication vulnerability in SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery from Cozyvision1, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery versions: 3.9.5 and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 2.21% chance of exploitation within 30 days, higher than 83% of scored CVEs.

Patch this week

Critical severity: a successful attack would have severe impact.

What to do

  1. Check which version of SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery you run against the affected versions below, and install the vendor's latest release.
  2. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
Cozyvision1SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery3.9.5 and earlierNot stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (wordfence.com).

Official description

The SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 3.9.5. This is due to the plugin not properly validating a user's identity prior to updating their details like reset the password of any user account, including administrators, and gain full access to those accounts. This makes it possible for unauthenticated attackers to change arbitrary user's email addresses, including administrators, and leverage that to reset the user's password and gain access to their account. This is only vulnerable on sites with OTP verification for password resets enabled, and where the administrator (or other user) has set a phone number for OTP verification.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

How developers prevent this class of flaw

  • Use an authentication framework or library such as the OWASP ESAPI Authentication feature.

More Improper Authentication vulnerabilities (CWE-287)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).

References

Other references

Other vulnerabilities in SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery

All SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery vulnerabilities

Recent Improper Authentication vulnerabilities

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