Multiple WSO2 products have been identified as vulnerable due to improper output encoding, a Stored Cross Site Scripting (XSS) attack can be carried out by an attacker injecting a malicious payload into the Registry feature of the Management Console.

A reflected XSS issue exists in the Management Console of several WSO2 products. This affects API Manager 2.2.0, 2.5.0, 2.6.0, 3.0.0, 3.1.0, 3.2.0, and 4.0.0; API Manager Analytics 2.2.0, 2.5.0, and 2.6.0; API Microgateway 2.2.0; Data Analytics Server 3.2.0; Enterprise Integrator 6.2.0, 6.3.0, 6.4.0, 6.5.0, and 6.6.0; IS as Key Manager 5.5.0, 5.6.0, 5.7.0, 5.9.0, and 5.10.0; Identity Server 5.5.0, 5.6.0, 5.7.0, 5.9.0, 5.10.0, and 5.11.0; Identity Server Analytics 5.5.0 and 5.6.0; and WSO2 Micro Integrator 1.0.0.

WSO2 Management Console through 5.10 allows XSS via the carbon/admin/login.jsp msgId parameter.

In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.