Vulnerability · Published Aug 5, 2026 · Assigned by WPScan

CVE-2026-15210Login/Signup with Phone Number, OTP Verification < 1.8.71 - Unauthenticated Account Takeover via OTP Brute Force

Critical 9.1

In plain English

A critical-severity improper authentication in OTP Login With Phone Number, OTP Verification from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).

Severity (CVSS 3.1)9.1Critical

Exploit odds (30 days)0.4%top 63.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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 (as reported)

Vendor	Product	Versions
Unknown	OTP Login With Phone Number, OTP Verification	0 – before 1.8.71

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References

https://wpscan.com/vulnerability/96101127-8b13-4770-9204-f540fb044040/ exploit, vdb-entry, technical-description