CVE-2026-15210: Unknown OTP Login With Phone Number, OTP Verification

Critical severity, CVSS 9.1. EPSS: 0.4% chance of exploitation in the next 30 days.

The OTP Login With Phone Number, OTP Verification WordPress plugin before 1.8.71 does not limit the number of OTP verification attempts or invalidate a one-time login code after a wrong guess, and an unauthenticated user can request a login code for any account. Because the code is a short numeric OTP, an attacker can brute-force it and take over any account, including an administrator's.

Affected products

• Unknown OTP Login With Phone Number, OTP Verification: before 1.8.71 (fixed in 1.8.71)

Published 2026-08-05. Last modified 2026-08-26.