Document::WeakDocumentSet& Document::liveDocumentSet()
{
    DEFINE_STATIC_LOCAL(OwnPtrWillBePersistent<WeakDocumentSet>, set, (adoptPtrWillBeNoop(new WeakDocumentSet())));
    return *set;
}

This category addresses vulnerabilities caused by flawed access control mechanisms, where incorrect permission settings allow unauthorized users to access restricted resources.