White hat hacker warns CMS plugins are leaving the security door wide openReading between the lines, the truth of the matter is that the vast majority of holes in the CMS code base, whichever platform you look at, have been found and fixed over the years. Kolochenko actually reckons that 99% of exploitable vulnerabilities in core CMS code fall into this category. So, CMS usage is pretty safe now then? Well, yes, but not 100% so and admins are partly to blame here. Weak passwords and password reuse are right up there at the top of the insecurity tree, along with social engineering attacks against CMS administrators. The compromise crown has to be placed upon the head of XSS vulnerabilities in plugins, made effective because of both the previous weaknesses.