The Method method in WikkaWiki (Wikka Wiki) before 1.1.6.2 calls the strstr and strrpos functions with the wrong argument order, which allows remote attackers to bypass intended access restrictions and access arbitrary PHP files.
Cross-site scripting (XSS) vulnerability in WikkaWiki (Wikka Wiki) before 1.1.6.2 allows remote attackers to inject arbitrary javascript via (1) events in forced links (url parameter) that are not properly handled in formatters/wakka.php, and possibly (2) other vectors in wikka.php.
Cross-site scripting (XSS) vulnerability in TextSearch in WikkaWiki 1.1.6.0 allows remote attackers to inject arbitrary web script or HTML via a hex-encoded phrase parameter.