Online-bookmarks before 0.4.6 allows remote attackers to bypass its authentication mechanism via a direct request to (1) config/*, (2) bookmarks.php, (3) footer.php, (4) main.php, (5) tree.php, or (6) functions.php.
Gentoo Linux Security Advisory GLSA 200901-08 - Multiple vulnerabilities have been reported in Online-Bookmarks. Versions less than 0.6.28 are affected.