PT-2026-39580 · Wso2 · Email Otp Authenticator+4

Published 2026-05-11 · Updated 2026-05-11 · CVE-2024-0391

NVD

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

The check user account lock states feature within the email OTP flow fails to validate user input, allowing an attacker to infer the existence of registered user accounts.

The discovery of valid usernames can increase the risk of brute-force and social engineering attacks. Attackers can leverage this information to craft targeted phishing campaigns or other malicious activities aimed at tricking users into divulging sensitive data, potentially damaging the organization's reputation and leading to regulatory non-compliance and financial consequences.

Fix

Weakness Enumeration

CWE-204

Related Identifiers

CVE-2024-0391

Affected Products

Email Otp Authenticator

Wso2 Carbon Authenticator Library For Emailotp

Wso2 Identity Server

Wso2 Identity Server As Key Manager

Wso2 Open Banking Am

References · 2

• https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2024-3115 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-0391 · Security Note