Security Advisory
CVE-2017-17672
CVE vulnerability detail — eXtreme Datacenter Security Operations
Description
In vBulletin through 5.3.x, there is an unauthenticated deserialization vulnerability that leads to arbitrary file deletion and, under certain circumstances, code execution, because of unsafe usage of PHPs unserialize() in vB_Library_Templates cacheTemplates() function, which is a publicly exposed API. This is exploited with the templateidlist parameter to ajax/api/template/cacheTemplates.