Vulnerability · Published Sep 23, 2025 · Assigned by WSO2
CVE-2025-0663Potential cross-tenant account takeover vulnerability in Multiple WSO2 Products via Adaptive Authentication and Auto-Login
Medium 6.8
In plain English
A medium-severity improper authentication in WSO2 Identity Server from WSO2. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).
Official description
A cross-tenant authentication vulnerability exists in multiple WSO2 products due to improper cryptographic design in Adaptive Authentication. A single cryptographic key is used across all tenants to sign authentication cookies, allowing a privileged user in one tenant to forge authentication cookies for users in other tenants. Because the Auto-Login feature is enabled by default, this flaw may allow an attacker to gain unauthorized access and potentially take over accounts in other tenants. Successful exploitation requires access to Adaptive Authentication functionality, which is typically restricted to high-privileged users. The vulnerability is only exploitable when Auto-Login is enabled, reducing its practical impact in deployments where the feature is disabled.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WSO2 | WSO2 Open Banking IAM | 2.0.0 – before 2.0.0.387 |
| WSO2 | WSO2 Identity Server as Key Manager | 5.10.0 – before 5.10.0.336 |
| WSO2 | WSO2 Identity Server | 5.10.0 – before 5.10.0.3435.11.0 – before 5.11.0.3926.0.0 – before 6.0.0.2286.1.0 – before 6.1.0.2207.0.0 – before 7.0.0.88 |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H