Security Advisory WSO2-2024-3115/CVE-2024-0391¶
Published: 2026-01-26
Version: 1.0.0
Severity: Medium
CVSS Score: 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVE IDs: CVE-2024-0391
AFFECTED PRODUCTS¶
- WSO2 Identity Server as Key Manager: 5.10.0
- WSO2 Identity Server: 7.0.0, 6.1.0, 6.0.0, 5.11.0, 5.10.0
- WSO2 Open Banking IAM: 2.0.0
OVERVIEW¶
Potential username enumeration.
DESCRIPTION¶
Due to the absence of a validation in the check user account lock states in the email OTP flow a malicious actor could exploit this feature and harvest information about users who have already registered.
IMPACT¶
The discovery of valid usernames can increase the risk of brute force attacks social engineering attacks and information leakage. Attackers can use the list of usernames to craft targeted phishing emails or other social engineering attacks to trick users into divulging sensitive information. Moreover the presence of username enumeration could damage the reputation of the organization responsible for the system and lead to loss of customer trust regulatory non-compliance and legal and financial consequences.
SOLUTION¶
Community Users (Open Source)¶
Apply the relevant fixes to your product using the public fix(es) provided below.
If applying the fix or update is not feasible, migrate to the latest unaffected version of the respective WSO2 product(s).
Support Subscription Holders¶
Update your product to the specified update level, or to a higher update level, to mitigate the identified vulnerability.
Info
WSO2 Support Subscription Holders may use WSO2 Updates in order to apply the fix.
| Product Name | Product Version | Update Level |
|---|---|---|
| WSO2 Identity Server | 7.0.0 | 131 |
| WSO2 Identity Server | 6.1.0 | 254 |
| WSO2 Identity Server | 6.0.0 | 253 |
| WSO2 Identity Server | 5.11.0 | 426 |
| WSO2 Identity Server | 5.11.0 | 431 |
| WSO2 Identity Server | 5.10.0 | 379 |
| WSO2 Identity Server as Key Manager | 5.10.0 | 267 |
| WSO2 Open Banking IAM | 2.0.0 | 318 |