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OpenAdvisories
Medium · 4.3 CVE-2025-6623 EUVD-2025-211115GHSA-34w7-4f3v-wc5q

Stored Cross-Site Scripting via XML Input in Multiple WSO2 Products Allows UI Manipulation and Redirection

Published Oct 19, 2026 · Updated Oct 20, 2026 · Assigned by WSO2

Description

The carbon console accepts user-supplied XML input without sufficiently encoding potentially executable content, allowing for the injection of malicious scripts.

Successful exploitation allows a remote attacker to execute arbitrary JavaScript in the context of a victim's browser, leading to actions such as redirecting the user to a malicious website or modifying the web page's user interface. Session hijacking is not possible as sensitive session cookies are protected by the httpOnly flag.

Affected products

VendorProductAffectedFixed
WSO2 WSO2 API Manager 3.2.0 – < 3.2.0.433, 3.2.1 – < 3.2.1.53, 4.1.0 – < 4.1.0.215, 4.2.0 – < 4.2.0.153, 4.3.0 – < 4.3.0.66, 4.4.0 – < 4.4.0.29, 4.5.0 – < 4.5.0.11 3.2.0.433
WSO2 WSO2 Universal Gateway 4.5.0 – < 4.5.0.11 4.5.0.11
WSO2 WSO2 Traffic Manager 4.5.0 – < 4.5.0.11 4.5.0.11
WSO2 WSO2 API Control Plane 4.5.0 – < 4.5.0.12 4.5.0.12
WSO2 WSO2 Carbon Event Publisher UI 5.2.26 – < 5.2.26.19, 5.2.41 – < 5.2.41.6, 5.2.57 – < 5.2.57.7, 5.3.5 – < 5.3.5.4, 5.3.11 – < 5.3.11.4, 5.3.15 – < 5.3.15.3, 5.3.20 – < 5.3.20.1 5.2.26.19
WSO2 WSO2 Carbon Event Receiver UI 5.2.26 – < 5.2.26.19, 5.2.41 – < 5.2.41.6, 5.2.57 – < 5.2.57.7, 5.3.5 – < 5.3.5.4, 5.3.11 – < 5.3.11.4, 5.3.15 – < 5.3.15.3, 5.3.20 – < 5.3.20.1 5.2.26.19

References