CVE-2018-1270, which permitted a malicious user to craft a STOMP message that could lead to remote code execution, was not fully addressed in the 4.3.x branch of the Spring Framework.

Pivotal Spring Framework could allow a remote authenticated attacker to gain elevated privileges on the system, caused by improper input validation. By sending a specially-crafted request, an attacker could exploit this vulnerability to gain elevated privileges.

Pivotal Spring Framework could allow a remote attacker to traverse directories on the system, caused by improper validation of user request. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to configure Spring MVC to serve static resources.

Pivotal Spring Security and Spring Framework could allow a remote attacker to bypass security restrictions, caused by the failure to consider URL path parameters when processing security constraints. By adding a URL path parameter with special encodings, an attacker could exploit this vulnerability to bypass access restrictions and gain access to the server and obtain sensitive information.