What’s Vulnerable › Vulnerabilities
CVE-2026-15206: SMS Alert Order Notifications – WooCommerce < 3.9.8 - Unauthenticated Account Takeover via Unbound OTP Verification in Signup-with-Mobile
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-02 · updated 2026-08-26
- Weakness: CWE-287
Description
The SMS Alert WordPress plugin before 3.9.8 does not bind its "mobile verified" session flag to the phone number that was actually verified: after an attacker verifies an OTP sent to their own phone, the signup/login handler reads a fresh, attacker-supplied phone number to select the account and logs them in. An unauthenticated attacker can therefore log in as any user, including an administrator, who has a billing phone on file.
Affected products
- SMS Alert: before 3.9.8 — fixed in 3.9.8
How to fix
Upgrade to a fixed version: SMS Alert 3.9.8. Check the vendor advisory for mitigations.
References
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