CVE-2025-0663
CVE-2025-0663 is a medium-severity vulnerability in Wso2 Identity Server with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.
Key facts
- Severity: Medium (CVSS 3.x base score 6.8)
- EPSS exploit prediction: 0% (13th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-30916
- Weakness: CWE-287
- Affected product: Wso2 Identity Server
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-0663?
- 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.
- How severe is CVE-2025-0663?
- CVE-2025-0663 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-0663 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-0663?
- CVE-2025-0663 primarily affects Wso2 Identity Server. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2025-0663?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-0663 have an EU (EUVD) identifier?
- Yes. CVE-2025-0663 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30916.
- When was CVE-2025-0663 published?
- CVE-2025-0663 was published on 2025-09-23 and last updated on 2026-06-17.
References
Affected products (7)
- cpe:2.3:a:wso2:identity_server:5.10.0:*:*:*:*:*:*:*
- cpe:2.3:a:wso2:identity_server:5.11.0:*:*:*:*:*:*:*
- cpe:2.3:a:wso2:identity_server:6.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:wso2:identity_server:6.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:wso2:identity_server:7.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:wso2:identity_server_as_key_manager:5.10.0:*:*:*:*:*:*:*
- cpe:2.3:a:wso2:open_banking_iam:2.0.0:*:*:*:*:*:*:*
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