common.php in Post Revolution before 0.8.0c-2 allows remote attackers to cause a denial of service (infinite loop) via malformed HTML markup, as demonstrated by an a< sequence.Referenceshttp://www.securityfocus.com/archive/1/518205/100/0/threadedhttp://www.securityfocus.com/bid/47967http://javierb.com.ar/2011/06/01/postrev-vunls/http://securityreason.com/securityalert/8270http://postrev.com.ar/verpost.php?id_noticia=59