Description


The WSO2 Identity Server fails to enforce a default expiry time for SMS One-Time Passwords (OTPs) used in multi-factor authentication (MFA). This allows unused OTPs to remain valid indefinitely, presenting an opportunity for malicious actors to conduct brute force attacks by repeatedly guessing the OTP. The absence of automatic expiration for OTPs grants attackers an unlimited timeframe to attempt guessing the correct code. A successful brute force attack can lead to an MFA bypass, resulting in the unauthorized takeover of a user's account and compromising the security and privacy of both the individual and the system.

Related CPE's


Could not find any relations

Weaknesses


ed10eef1-636d-4fbe-9993-6890dfa878f8

Secondary

CWE-613

CVSS impact metrics


CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

5.9 · Medium

Information


Source identifier

ed10eef1-636d-4fbe-9993-6890dfa878f8

Vulnerability status

Deferred

Published

2026-10-08T01:16:32.037Z

31 hours ago

Last modified

2026-10-08T17:17:10.723Z

15 hours ago