The Apache OFBiz HTTP engine (org.apache.ofbiz.service.engine.HttpEngine.java) handles requests for HTTP services via the /webtools/control/httpService endpoint. This service takes the serviceContent parameter in the request and deserializes it using XStream. This XStream instance is slightly guarded by disabling the creation of ProcessBuilder. However, this can be easily bypassed (and in multiple ways). Mitigation: Upgrade to 16.11.06 or manually apply the following commits on branch 16 r1850017+1850019

An RCE is possible by entering Freemarker markup in an Apache OFBiz Form Widget textarea field when encoding has been disabled on such a field. This was the case for the Customer Request "story" input in the Order Manager application. Encoding should not be disabled without good reason and never within a field that accepts user input. Mitigation: Upgrade to 16.11.06 or manually apply the following commit on branch 16.11: r1858533

The "Blog", "Forum", "Contact Us" screens of the template "ecommerce" application bundled in Apache OFBiz are weak to Stored XSS attacks. Mitigation: Upgrade to 16.11.06 or manually apply the following commits on branch 16.11: 1858438, 1858543, 1860595 and 1860616