The MultiPageValidator implementation in Apache Struts 1 1.1 through 1.3.10 allows remote attackers to bypass intended access restrictions via a modified page parameter.
A vulnerability in Apache Struts 1 ActionForm allowing unintended remote operations against components on server memory, such as Servlets and ClassLoader, was found.
Affects Apache Struts versions 1.0 through 1.3.10
External References:
https://jvn.jp/en/jp/JVN03188560/
ActionServlet.java in Apache Struts 1 1.x through 1.3.10 does not properly restrict the Validator configuration, which allows remote attackers to conduct cross-site scripting (XSS) attacks or cause a denial of service via crafted input, a related issue to CVE-2015-0899.