WSO2 WSO2 Identity Server URL Parameter cross site scripting

Summaryinfo

A vulnerability described as problematic has been identified in WSO2 WSO2 Identity Server. Impacted is an unknown function of the component URL Parameter Handler. The manipulation results in cross site scripting. This vulnerability was named CVE-2025-8591. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in WSO2 WSO2 Identity Server (unknown version). It has been classified as problematic. Affected is an unknown code block of the component URL Parameter Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

The software accepts user-supplied input via a URL parameter without adequate output encoding before reflecting it back to the user's browser. This condition allows an attacker to inject malicious script content into pages served by the application. By leveraging this weakness, an attacker can cause the user's browser to redirect to a malicious website, modify the UI of the webpage, or retrieve information from the browser. However, the impact is mitigated by the use of httpOnly flags on session-related cookies, preventing session hijacking.

The advisory is available at security.docs.wso2.com. This vulnerability is traded as CVE-2025-8591 since 08/05/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-210428). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• WSO2

Name

• WSO2 Identity Server

License

• commercial

CPE 2.3info

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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