Jax Guestbook 3.5.0 allows remote attackers to bypass authentication and modify administrator settings via a direct request to admin/guestbook.admin.php.

Cross-site scripting (XSS) vulnerability in jax_linklists.php in Jack (tR) Jax LinkLists 1.00 allows remote attackers to inject arbitrary web script or HTML via the cat parameter. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Jax Guestbook 3.1 and 3.31 stores sensitive information under the web root with insufficient access control, which allows remote attackers to obtain IP addresses of users via a direct request to (1) guestbook, (2) guestbook_ips2block, (3) ips2block, and (4) formmailer/logfile.csv.

Multiple cross-site scripting (XSS) vulnerabilities in jax_guestbook.php in Jax Guestbook 3.1 and 3.31 allow remote attackers to inject arbitrary web script or HTML via the (1) gmt_ofs and (2) language parameters. NOTE: the page parameter is already covered by CVE-2006-1913. NOTE: it was later reported that 3.50 is also affected.

Multiple directory traversal vulnerabilities in Jax Petition Book 1.0.3.06 allow remote attackers to include and execute arbitrary local files via a .. (dot dot) in the languagepack parameter to (1) jax_petitionbook.php or (2) smileys.php.

Cross-site scripting (XSS) vulnerability in jax_guestbook.php in Jax Guestbook 3.1, 3.31, and 3.50 allows remote attackers to inject arbitrary web script or HTML via the page parameter.