admin/index.php in Maian Guestbook 3.2 and earlier allows remote attackers to bypass authentication and gain administrative access by sending an arbitrary gbook_cookie cookie.

Cross-site scripting (XSS) vulnerability in send_email.php in AN Guestbook (ANG) 0.4 allows remote attackers to inject arbitrary web script or HTML via the postid parameter.

Multiple cross-site scripting (XSS) vulnerabilities in admin/inc/footer.php in Maian Guestbook 3.2 allow remote attackers to inject arbitrary web script or HTML via the (1) msg_script2 and (2) msg_script3 parameters.

Directory traversal vulnerability in index.php in Sava's GuestBook 2.0 allows remote attackers to include and execute arbitrary local files via directory traversal sequences in the action parameter. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Multiple cross-site scripting (XSS) vulnerabilities in the DMSGuestbook 1.7.0 plugin for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) file parameter to wp-admin/admin.php, or the (2) messagefield parameter in the guestbook page, and the (3) title parameter in the messagearea.

Directory traversal vulnerability in wp-admin/admin.php in the DMSGuestbook 1.8.0 and 1.7.0 plugin for WordPress allows remote authenticated users to read arbitrary files via a .. (dot dot) in the (1) folder and (2) file parameters.

Multiple cross-site scripting (XSS) vulnerabilities in the DMSGuestbook 1.8.0 and 1.7.0 plugin for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) gbname, (2) gbemail, (3) gburl, and (4) gbmsg parameters to unspecified programs. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

SQL injection vulnerability in the administration panel in the DMSGuestbook 1.7.0 plugin for WordPress allows remote authenticated administrators to execute arbitrary SQL commands via unspecified vectors. NOTE: it is not clear whether this issue crosses privilege boundaries.

Multiple directory traversal vulnerabilities in DM Guestbook 0.4.1 and earlier allow remote attackers to include and execute arbitrary local files via a .. (dot dot) in (1) the lng parameter to (a) guestbook.php, (b) admin/admin.guestbook.php, or (c) auto/glob_new.php; or (2) the lngdefault parameter to auto/ch_lng.php.

Cross-site scripting (XSS) vulnerability in index.php in Don Barnes DRBGuestbook 1.1.13 allows remote attackers to inject arbitrary web script or HTML via the action parameter.