CVE-2026-11387: Auth Bypass (CVSS 9.8)

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.

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CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0038

Probability of exploitation

0.30%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-287 Improper Authentication

References

Other References

https://plugins.trac.wordpress.org/browser/sms-alert/tags/3.9.5/handler/forms/class-ultimatemember.php#L288 https://plugins.trac.wordpress.org/browser/sms-alert/tags/3.9.5/handler/forms/class-ultimatemember.php#L88 https://plugins.trac.wordpress.org/browser/sms-alert/tags/3.9.5/handler/forms/class-wpresetpassword.php#L116 https://plugins.trac.wordpress.org/browser/sms-alert/tags/3.9.5/handler/forms/class-wpresetpassword.php#L130 https://plugins.trac.wordpress.org/browser/sms-alert/tags/3.9.5/handler/forms/class-wpresetpassword.php#L68 https://plugins.trac.wordpress.org/browser/sms-alert/tags/3.9.5/handler/smsalert_form_handler.php#L91 https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3587983%40sms-alert&new=3587983%40sms-alert&sfp_email=&sfph_mail= https://www.wordfence.com/threat-intel/vulnerabilities/id/c31906da-f2fd-40ac-86e0-3f1ed0409d0c?source=cve

Frequently Asked Questions

What is CVE-2026-11387? +

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-11387? +

CVE-2026-11387 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0038, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-11387? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-11387