WSO2 Identity Server as Key Manager Scim Endpoint improper authorization

Summaryinfo

A vulnerability has been found in WSO2 Identity Server as Key Manager, Open Banking IAM, Identity Server, Carbon SCIM Common Component and Carbon SCIM 2.0 Common Component and classified as critical. This impacts an unknown function of the component Scim Endpoint. The manipulation leads to improper authorization. This vulnerability is listed as CVE-2025-10149. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, has been found in WSO2 Identity Server as Key Manager, Open Banking IAM, Identity Server, Carbon SCIM Common Component and Carbon SCIM 2.0 Common Component. This issue affects an unknown part of the component Scim Endpoint. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The SCIM endpoint does not sufficiently validate authorization for federated users when performing operations against the local user store. This occurs when a local and a federated user share the same username, allowing a federated user to perform actions intended for a local user, including arbitrary operations. A malicious actor authenticated as a federated user may perform arbitrary operations on local user accounts via the SCIM 2.0 or SCIM 1.1 endpoints when local and federated users share the same username. This could lead to user account takeover. Deployments that do not support user self-registration are considered medium severity.

The advisory is shared at security.docs.wso2.com. The identification of this vulnerability is CVE-2025-10149 since 09/09/2025. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/19/2026). MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Banking Software

Vendor

• WSO2

Name

• Carbon SCIM 2.0 Common Component
• Carbon SCIM Common Component
• Identity Server
• Identity Server as Key Manager
• Open Banking IAM

License

• commercial

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CPE 2.2info

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