Cross-site request forgery (CSRF) vulnerability in login.php in Elvin 1.2.0 allows remote attackers to hijack the authentication of arbitrary users via a logout action.

Cross-site scripting (XSS) vulnerability in show_activity.php in Elvin 1.2.0 allows remote attackers to inject arbitrary web script or HTML via the id parameter.

Multiple SQL injection vulnerabilities in Elvin 1.2.0 allow remote attackers to execute arbitrary SQL commands via the (1) inUser (aka Username) and (2) inPass (aka Password) parameters to (a) inc/login.ei, reachable through login.php; and the (3) id parameter to (b) show_bug.php and (c) show_activity.php. NOTE: it was later reported that vector 3c also affects 1.2.2.

Elvin 1.2.0 allows remote attackers to read the PHP source code of (1) login.ei, (2) jump_bug.ei, or (3) create_account.ei in inc/ via a direct request.

Directory traversal vulnerability in page.php in Elvin 1.2.0 allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the id parameter.