Vulnerability · Published Aug 6, 2026 · Assigned by WSO2
CVE-2025-15039Account Takeover via Conditional Authentication Script Logic in Multiple WSO2 Products
Critical 9.4
In plain English
A critical-severity security flaw in WSO2 API Control Plane from WSO2. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Official description
The Conditional Authentication (Adaptive Authentication) script does not correctly enforce the completion of all required authentication steps when a specific multi-step pattern involving certain authenticators is configured. This allows an attacker to bypass intermediate authentication challenges by exploiting how the script handles callbacks and re-execution of authentication steps. Successful exploitation allows a malicious actor to gain unauthorized access to a targeted user account. This vulnerability can only be exploited when all of the following conditions are met: the application login flow contains a specific secondary authenticator, the Conditional Authentication script is configured with particular event callbacks and re-executes an authentication step, the targeted user has one of the impacted authenticators enrolled, and the attacker successfully completes any preceding authentication steps.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WSO2 | WSO2 Identity Server | 5.7.0 – before 5.7.0.1305.8.0 – before 5.8.0.1135.9.0 – before 5.9.0.1735.10.0 – before 5.10.0.3855.11.0 – before 5.11.0.4326.0.0 – before 6.0.0.2596.1.0 – before 6.1.0.260 |
| WSO2 | WSO2 API Manager | 2.6.0 – before 2.6.0.1503.0.0 – before 3.0.0.1803.1.0 – before 3.1.0.3563.2.0 – before 3.2.0.4603.2.1 – before 3.2.1.794.0.0 – before 4.0.0.3814.1.0 – before 4.1.0.244 |
| WSO2 | WSO2 Open Banking AM | 1.4.0 – before 1.4.0.1431.5.0 – before 1.5.0.1442.0.0 – before 2.0.0.405 |
| WSO2 | WSO2 Open Banking IAM | 2.0.0 – before 2.0.0.425 |
| WSO2 | WSO2 Traffic Manager | 4.5.0 – before 4.5.0.434.6.0 – before 4.6.0.8 |
| WSO2 | WSO2 Universal Gateway | 4.5.0 – before 4.5.0.434.5.0 – before 4.5.0.444.6.0 – before 4.6.0.8 |
| WSO2 | WSO2 API Control Plane | 4.5.0 – before 4.5.0.454.6.0 – before 4.6.0.9 |
| WSO2 | WSO2 Identity Server as Key Manager | 5.7.0 – before 5.7.0.1295.9.0 – before 5.9.0.1795.10.0 – before 5.10.0.376 |
| WSO2 | WSO2 Open Banking KM | 1.4.0 – before 1.4.0.1371.5.0 – before 1.5.0.127 |
| WSO2 | WSO2 Carbon Identity Application Authentication Framework | 5.12.153 – before 5.12.153.665.12.387 – before 5.12.387.485.14.97 – before 5.14.97.945.17.5 – before 5.17.5.3375.17.118 – before 5.17.118.245.18.187 – before 5.18.187.3345.18.248 – before 5.18.248.345.23.8 – before 5.23.8.221 |
Weakness: CWE-693 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L