connection.php in FlashChat 5.0.8 allows remote attackers to bypass the role filter mechanism and gain administrative privileges by setting the s parameter to "7."

FlashChat Arbitrary File Upload RCE

An unauthenticated arbitrary file upload vulnerability exists in FlashChat versions 6.0.2 and 6.0.4 through 6.0.8. The upload.php endpoint fails to properly validate file types and authentication, allowing attackers to upload malicious PHP scripts. Once uploaded, these scripts can be executed remotely, resulting in arbitrary code execution as the web server user.