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 allows libraries/image-editor/image-edit.php image_temp Directory Traversal.

ImpressCMS before 1.4.3 has plugins/preloads/autologin.php type confusion with resultant Authentication Bypass (!= instead of !==).

ImpressCMS before 1.4.3 allows include/findusers.php groups SQL Injection.

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).

ImpressCMS before 1.4.2 allows unauthenticated remote code execution via ...../// directory traversal in origName or imageName, leading to unsafe interaction with the CKEditor processImage.php script. The payload may be placed in PHP_SESSION_UPLOAD_PROGRESS when the PHP installation supports upload_progress.

Cross-site scripting (XSS) in modules/content/admin/content.php in ImpressCMS profile 1.4.2 allows remote attackers to inject arbitrary web script or HTML parameters through the "Display Name" field.

ImpressCMS 1.4.0 is affected by XSS in modules/system/admin.php which may result in arbitrary remote code execution.

ImpressCMS 1.3.10 has XSS via the PATH_INFO to htdocs/install/index.php, htdocs/install/page_langselect.php, or htdocs/install/page_modcheck.php.