Security Advisory WSO2-2023-3081¶
Published: 2026-05-03
Version: 1.0.0
Severity: Medium
CVSS Score: 5.4 (CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L)
AFFECTED PRODUCTS¶
- WSO2 API Manager: 4.2.0, 4.1.0, 4.0.0, 3.2.0
- WSO2 Enterprise Integrator: 6.6.0
- WSO2 Micro Integrator: 4.3.0, 4.2.0, 4.1.0, 4.0.0, 1.2.0
OVERVIEW¶
Potential MiTM due to missing Websocket hostname verification.
DESCRIPTION¶
Due to hostname verification being disabled a malicious actor could intercept the gateway to backend websocket connections to perform a MiTM attack.
IMPACT¶
In order for the attack to succeed a malicious actor should have access to the network connection between the gateway and the backend application.
By leveraging the vulnerability a malicious actor could intercept and potentially alter the communication between two parties gaining unauthorized access to sensitive information such as login credentials personal data or confidential messages. This could lead to unauthorized actions identity theft or the compromise of sensitive transactions.
SOLUTION¶
Community Users (Open Source)¶
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 API Manager | 4.2.0 | 56 |
| WSO2 API Manager | 4.1.0 | 124 |
| WSO2 API Manager | 4.0.0 | 259 |
| WSO2 API Manager | 3.2.0 | 327 |
| WSO2 Enterprise Integrator | 6.6.0 | 205 |
| WSO2 Micro Integrator | 4.3.0 | 6 |
| WSO2 Micro Integrator | 4.2.0 | 51 |
| WSO2 Micro Integrator | 4.1.0 | 114 |
| WSO2 Micro Integrator | 4.0.0 | 110 |
| WSO2 Micro Integrator | 1.2.0 | 162 |