ImpressCMS 1.3.11 contains a time-based blind SQL injection vulnerability that allows authenticated attackers to manipulate database queries by injecting SQL code through the 'bid' parameter. Attackers can send POST requests to the admin.php endpoint with malicious 'bid' values containing SQL commands to extract sensitive database information.
ImpressCMS 1.4.4 contains a file upload vulnerability with weak extension sanitization that allows attackers to upload potentially malicious files. Attackers can bypass file upload restrictions by using alternative file extensions .php2.php6.php7.phps.pht to execute arbitrary PHP code on the server.
A cross-site scripting (XSS) vulnerability in ImpressCMS v1.4.5 and before allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the smile_code parameter of the component /editprofile.php.
SQL Injection in ImpressCMS 1.4.3 and earlier allows remote attackers to inject into the code in unintended way, this allows an attacker to read and modify the sensitive information from the database used by the application. If misconfigured, an attacker can even upload a malicious web shell to compromise the entire system.
ImpressCMS before 1.4.3 has Incorrect Access Control because include/findusers.php allows access by unauthenticated attackers (who are, by design, able to have a security token).