Skip to main content
Meet us at Black Hat USA 2026— Las Vegas, August 1–6Book a Meeting
Mallory
Back to vulnerabilities
Unrated

Unauthenticated Account Takeover in SMS Alert for WooCommerce <= 3.9.5

IdentifiersCVE-2026-11387CWE-639

CVE-2026-11387 is a critical privilege-escalation vulnerability in the SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery plugin for WordPress affecting all versions up to and including 3.9.5. The flaw stems from improper validation of a user's identity before allowing updates to account details. As described, an unauthenticated attacker can change an arbitrary user's email address and then use the password reset workflow to reset that user's password. Because this can be performed against any account, including administrator accounts, the issue results in full account takeover. The vulnerable condition is specifically tied to deployments where OTP verification for password resets is enabled and the targeted user has a phone number configured for OTP verification.

Share:
For your environment

Are you exposed to this one?

Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.

Start free trial
ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows unauthenticated takeover of arbitrary WordPress user accounts, including administrators. This can lead to complete compromise of the affected site through administrative access, including modification of site content and configuration, installation of malicious plugins or backdoors, creation of additional privileged accounts, access to sensitive user or commerce data, and broader integrity and availability impacts consistent with full administrator control.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, disable OTP verification for password resets to remove the vulnerable attack path. Additionally, review user accounts for unauthorized email-address changes or password resets, especially privileged accounts, and reset credentials for potentially affected users.

Remediation

Patch, then assume compromise.

Update the SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery plugin to version 3.9.6 or later. Ensure all affected instances running versions 3.9.5 and earlier are upgraded promptly.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

ACTIVITY FEED

Recent activity

8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

8 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Start free trial
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity7

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-11387
NVD
nvd.nist.gov/vuln/detail/CVE-2026-11387
MITRE CWE · CWE-639
cwe.mitre.org