An issue was discovered in Pluck before 4.7.7-dev2. /data/inc/images.php allows remote attackers to upload and execute arbitrary PHP code by using the image/jpeg content type for a .htaccess file.
An issue was discovered in Pluck before 4.7.6. Remote PHP code execution is possible because the set of disallowed filetypes for uploads in missing some applicable ones such as .phtml and .htaccess.
An issue was discovered in Pluck through 4.7.4. A stored cross-site scripting (XSS) vulnerability allows remote unauthenticated users to inject arbitrary web script or HTML into admin/blog Reaction Comments via a crafted URL.
Pluck CMS 4.7.2 allows remote attackers to obtain sensitive information by (1) changing "PHPSESSID" to an array; (2) adding non-alphanumeric chars to "PHPSESSID"; (3) changing the image parameter to an array; or (4) changing the image parameter to a string, which reveals the installation path in an error message.
Cross-site scripting (XSS) vulnerability in TinyMCE in Pluck CMS 4.7.2 allows remote authenticated users to inject arbitrary web script or HTML via the "edit HTML source" option.