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SMS Alert <= 4.0.0 — Unauthenticated Arbitrary Account Takeover

CVE-2026-94256Published · Updated

Action summary

Affected: ≤4.0.0Update to 4.0.1 or newer

All remediation steps
Watch plugin
Severity
Critical9.8
CVSS
9.8
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-287 Improper Authentication
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

SMS Alert – SMS Notifications & OTP Login, COD Verification, Abandoned Cart Recovery sms-alert

  1. Affected≤ 4.0.0
  2. Patched in4.0.1

Update to 4.0.1 or newer.

You are affected if you run ≤ 4.0.0. Version 4.0.1 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under SMS Alert – SMS Notifications & OTP Login, COD Verification, Abandoned Cart Recovery.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 4.0.1, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch SMS Alert – SMS Notifications & OTP Login, COD Verification, Abandoned Cart Recovery to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Raphael P. Cigana.

The SMS Alert plugin for WordPress is vulnerable to Account Takeover in all versions up to, and including, 4.0.0. This is due to missing verification that the OTP-validated phone number in the session belongs to the account being authenticated, allowing the session phone to be mismatched with the login target. This makes it possible for unauthenticated attackers to sign in as any WordPress user, including administrators, by completing an OTP challenge with their own phone number and then supplying a victim's username, without needing the victim's phone. The targeted user account must have a stored phone number in their profile meta.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in SMS Alert – SMS Notifications & OTP Login, COD Verification, Abandoned Cart Recovery

All 30
More vulnerabilities in SMS Alert – SMS Notifications & OTP Login, COD Verification, Abandoned Cart Recovery
SeverityVulnerabilityCVEPublished
High7.3Unauthenticated Privilege Escalation
≤4.0.2Update to 4.0.3
CVE-2026-116386
Medium4.3Missing Authorization
≤4.0.1Update to 4.0.2
CVE-2026-110882
Low2.74.0.0 - Authenticated (Administrator+) Information Exposure
3.6.4 – 4.0.0Update to 4.0.1
CVE-2026-94258
High7.34.0.0 - Unauthenticated Privilege Escalation
3.9.6 – 4.0.0Update to 4.0.1
CVE-2026-94257
High7.3Unauthenticated Privilege Escalation
≤4.0.0Update to 4.0.1
CVE-2026-95594

Timeline

  1. CVE published

    Severity critical, CVSS 9.8

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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