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.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-4104/ Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 4.8 · wso2NVD modified 2026-10-18 21:10
Affected (CPE criteria) 10
cpe:2.3:a:wso2:api_control_plane:4.5.0:-:*:*:*:*:*:*cpe:2.3:a:wso2:api_manager:3.2.0:*:*:*:*:*:*:*cpe:2.3:a:wso2:api_manager:3.2.1:*:*:*:*:*:*:*cpe:2.3:a:wso2:api_manager:4.1.0:-:*:*:*:*:*:*cpe:2.3:a:wso2:api_manager:4.2.0:-:*:*:*:*:*:*cpe:2.3:a:wso2:api_manager:4.3.0:-:*:*:*:*:*:*cpe:2.3:a:wso2:api_manager:4.4.0:-:*:*:*:*:*:*cpe:2.3:a:wso2:api_manager:4.5.0:-:*:*:*:*:*:*cpe:2.3:a:wso2:traffic_manager:4.5.0:*:*:*:*:*:*:*cpe:2.3:a:wso2:universal_gateway:4.5.0:*:*:*:*:*:*:*