WSO2 Identity Server up to 7.0.0.87 Authentication Endpoint cross site scripting

Summaryinfo

A vulnerability was found in WSO2 Identity Server. It has been rated as problematic. Impacted is an unknown function of the component Authentication Endpoint. The manipulation leads to cross site scripting. This vulnerability is documented as CVE-2025-10503. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in WSO2 Identity Server. This issue affects an unknown function of the component Authentication Endpoint. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is:

The authentication endpoint accepts user-supplied input without enforcing expected validation constraints, leading to a lack of proper output encoding. This allows for the injection of malicious JavaScript payloads, enabling reflected cross-site scripting. An attacker can leverage this vulnerability to redirect the user's browser to a malicious website, modify the user interface of the web page, retrieve information from the browser, or cause other harmful actions. However, due to the protection of session-related cookies with the httpOnly flag, session hijacking is not possible.

The advisory is shared at security.docs.wso2.com. The identification of this vulnerability is CVE-2025-10503 since 09/16/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 7.1.0.28 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-202604-5694). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• WSO2

Name

• Identity Server

Version

• 2.2.0.0
• 2.2.0.1
• 2.5.0.1
• 2.6.0.1
• 3.0.0.1
• 3.1.0.1
• 3.2.0.0
• 3.2.0.1
• 3.2.0.3
• 5.1.0
• 5.2.0.35
• 5.4.0.0
• 5.4.0.2
• 5.4.0.4
• 5.4.1.2
• 5.4.1.3
• 5.5.0
• 5.5.0.0
• 5.5.0.1
• 5.6.0.1
• 5.7.0
• 5.7.0.1
• 5.8.0.5
• 5.9.0.1
• 5.10.0.1
• 5.11.0.299
• 6.1.0.0
• 6.1.0.9
• 6.1.1.9
• 6.2.0.7
• 6.3.0.1
• 6.4.0.1
• 6.5.0.6
• 6.6.0.11
• 7.0.0.64
• 7.0.0.87

License

• commercial

CPE 2.3info

• 🔒
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CPE 2.2info

• 🔒
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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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