CVE-2017-10841

Directory traversal vulnerability in WebCalendar 1.2.7 and earlier allows authenticated attackers to read arbitrary files via unspecified vectors.

CVE-2012-5384

Multiple cross-site scripting (XSS) vulnerabilities in Craig Knudsen WebCalendar allow remote attackers to inject arbitrary web script or HTML via the (1) $name or (2) $description variables in edit_entry_handler.php, or (3) $url, (4) $tempfullname, or (5) $ext_users[] variables in view_entry.php, ...

CVE-2013-1421

Cross-site scripting (XSS) vulnerability in Craig Knudsen WebCalendar before 1.2.5, 1.2.6, and other versions before 1.2.7 allows remote attackers to inject arbitrary web script or HTML via the Category Name field to category.php.