Cross-site request forgery (CSRF) vulnerability in index.php in ProjectPier 0.8 and earlier allows remote attackers to perform actions as an administrator via the query string, as demonstrated by a delete project action.

Multiple cross-site scripting (XSS) vulnerabilities in ProjectPier 0.8 and earlier allow remote attackers to inject arbitrary web script or HTML via (1) a message, (2) a milestone, or (3) a display name in a profile, or the (4) a or (5) c parameter to index.php.

ProjectPier 0.8.0.3 allows remote attackers to obtain sensitive information via a direct request to a .php file, which reveals the installation path in an error message, as demonstrated by public/upgrade/templates/layout.php and certain other files.

ProjectPier 0.8.8 has stored XSS

ProjectPier 0.8.8 has a Remote Information Disclosure Weakness because of the lack of the HttpOnly cookie flag

ProjectPier 0.8.8 does not use the Secure flag for cookies

Multiple cross-site scripting (XSS) vulnerabilities in Project-Pier ProjectPier-Core allow remote attackers to inject arbitrary web script or HTML via the search_for parameter to (1) search_by_tag.php, (2) search_contacts.php, or (3) search.php.

PHP remote file inclusion vulnerability in public/patch/patch.php in Project Pier 0.8.8 and earlier allows remote attackers to execute arbitrary commands or SQL statements via the id parameter.

Unrestricted file upload vulnerability in the Files plugin in ProjectPier 0.88 and earlier allows remote authenticated users to execute arbitrary PHP code by uploading a file with an executable extension, then accessing it via a direct request to the file in the tmp directory under the document root.