[原文]SQL injection vulnerability in 4nGuestbook 0.92 for PHP-Nuke 6.5 through 6.9 allows remote attackers to modify SQL statements via the entry parameter to modules.php, which can also facilitate cross-site scripting (XSS) attacks when MySQL errors are triggered.
4nGuestBook contains a flaw that may allow a remote attacker to carry out an SQL injection attack. The issue is due to the 'admin.php' script not properly sanitizing user-supplied input to the 'nbid' variable. This may allow a remote attacker to inject or manipulate SQL queries in the back-end database.
Currently, there are no known upgrades, patches, or workarounds available to correct this issue.