lib/Driver/sql.php in Turba 2 (turba2) Contact Manager H3 2.1.x before 2.1.7 and 2.2.x before 2.2-RC3, as used in products such as Horde Groupware before 1.0.4 and Horde Groupware Webmail Edition before 1.0.5, does not properly check access rights, which allows remote authenticated users to modify address data via a modified object_id parameter to edit.php, as demonstrated by modifying a personal address book entry when there is write access to a shared address book.
https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00927.html
https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00888.html
https://bugzilla.redhat.com/show_bug.cgi?id=432027
http://www.vupen.com/english/advisories/2008/0593/references
http://www.securitytracker.com/id?1019433
http://www.securityfocus.com/bid/27844
http://www.debian.org/security/2008/dsa-1507
http://secunia.com/advisories/29186
http://secunia.com/advisories/29185
http://secunia.com/advisories/29184
http://secunia.com/advisories/29071
http://secunia.com/advisories/28982
http://lists.horde.org/archives/announce/2008/000381.html
http://lists.horde.org/archives/announce/2008/000380.html
http://lists.horde.org/archives/announce/2008/000379.html