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EUVD-2026-253343

fkie_cve-2025-4760

An authenticated stored cross-site scripting (XSS) vulnerability exists in multiple WSO2 products due to improper validation of user-supplied input during API document upload in the Publisher portal. A user with publisher privileges can upload a crafted API document containing malicious JavaScript, which is later rendered in the browser when accessed by other users.

A successful attack could result in redirection to malicious websites, unauthorized UI modifications, or exfiltration of browser-accessible data. However, session-related sensitive cookies are protected by the httpOnly flag, preventing session hijacking.

GHSA-cmjc-qp7j-xgwr — WSO2 carbon-apimgt affected by an authenticated stored cross-site scripting (XSS) vulnerability

Affected: Maven: org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.api, Maven: org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.rest.api.publisher.v1

An authenticated stored Cross-Site Scripting (XSS) vulnerability exists in WSO2 API Manager components (`carbon-apimgt`) due to insufficient validation of user-supplied input during API document upload in the Publisher portal.

A user with publisher privileges can upload a crafted API document whose contents are later rendered in the UI for other users, leading to attacker-controlled script execution. Likely outcomes include redirection to malicious sites, unauthorized UI modifications, or exfiltration of data accessible to the browser; session hijacking is mitigated by the use of `HttpOnly` session cookies.

To remediate, update to version 9.31.117 or above.