Multiple PHP remote file inclusion vulnerabilities in AFGB GUESTBOOK 2.2 allow remote attackers to execute arbitrary PHP code via a URL in the Htmls parameter in (1) add.php, (2) admin.php, (3) look.php, or (4) re.php.

Multiple PHP remote file inclusion vulnerabilities in Telekorn SignKorn Guestbook (SL) 1.3 and earlier, when register_globals is enabled, allow remote attackers to execute arbitrary PHP code via a URL in the dir_path parameter in (1) index.php, (2) includes/functions.gb.php, (3) includes/functions.admin.php, (4) includes/admin.inc.php, (5) help.php, (6) smile.php, (7) entry.php; (8) adminhelp0.php, (9) adminhelp1.php, (10) adminhelp2.php, and (11) adminhelp3.php in (a) help/en and (b) help/de directories; and the (12) preview.php, (13) log.php, (14) index.php, (15) config.php, and (16) admin.php in the (c) admin directory, a different set of vectors than CVE-2006-4788.

PHP remote file inclusion vulnerability in includes/log.inc.php in Telekorn SignKorn Guestbook (SL) 1.3 and earlier, when register_globals is enabled and _SESSION[permission] parameter is set to "yes", allows remote attackers to execute arbitrary PHP code via a URL in the dir_path parameter.

Cross-site scripting (XSS) vulnerability in gbook.php in Doika guestbook 2.5, and possibly earlier, allows remote attackers to inject arbitrary web script or HTML via the page parameter.

Simple one-file guestbook 1.0 and earlier allows remote attackers to bypass authentication and delete guestbook entries via a modified id parameter to guestbook.php.

PHP remote file inclusion vulnerability in index.php in Knusperleicht Guestbook 3.5 allows remote attackers to execute arbitrary PHP code via a URL in the GB_PATH parameter.

post.php in x_atrix xGuestBook 1.02 allows remote attackers to obtain sensitive information via a request without the (1) user, (2) mail, (3) p, or (4) url parameter, which reveals the installation path in an error message.

Cross-site scripting (XSS) vulnerability in index.php in Micro GuestBook allows remote attackers to execute arbitrary SQL commands via the (1) name or (2) comment ("text") fields.

delcookie.php in Professional Home Page Tools Guestbook changes the expiration date of a cookie instead of deleting the cookie's value, which makes it easier for attackers to steal the cookie and obtain the administrator's password hash after logout.

setcookie.php for the administration login in Professional Home Page Tools Guestbook records the hash of the administrator password in a cookie, which allows attackers to conduct brute force password guessing attacks after obtaining the hash.