An SQL Injection vulnerability exists in Webtareas 2.4p3 and earlier via the $uq HTTP POST parameter in editapprovalstage.php.

webTareas version 2.4 and earlier allows an unauthenticated user to perform Time and Boolean-based blind SQL Injection on the endpoint /includes/library.php, via the sor_cible, sor_champs, and sor_ordre HTTP POST parameters. This allows an attacker to access all the data in the database and obtain access to the webTareas application.

webTareas version 2.4 and earlier allows an authenticated user to arbitrarily upload potentially dangerous files without restrictions. This is working by adding or replacing a personal profile picture. The affected endpoint is /includes/upload.php on the HTTP POST data. This allows an attacker to exploit the platform by injecting code or malware and, under certain conditions, to execute code on remote user browsers.

webTareas version 2.4 and earlier allows an authenticated user to inject arbitrary web script or HTML due to incorrect sanitization of user-supplied data and achieve a Reflected Cross-Site Scripting attack against the platform users and administrators. The issue affects every endpoint on the application because it is related on how each URL is echoed back on every response page.

webTareas version 2.4 and earlier allows an authenticated user to store arbitrary web script or HTML by creating or editing a client name in the clients section, due to incorrect sanitization of user-supplied data and achieve a Stored Cross-Site Scripting attack against the platform users and administrators. The affected endpoint is /clients/editclient.php, on the HTTP POST cn parameter.

A Cross-Site Request Forgery (CSRF) vulnerability in webTareas version 2.4 and earlier allows a remote attacker to create a new administrative profile and add a new user to the new profile. without the victim's knowledge, by enticing an authenticated admin user to visit an attacker's web page.

Path Traversal vulneraility exists in webTareas 2.0 via the extpath parameter in general_serv.php, which could let a malicious user read arbitrary files.

webTareas through 2.1 allows XSS in clients/editclient.php, extensions/addextension.php, administration/add_announcement.php, administration/departments.php, administration/locations.php, expenses/claim_type.php, projects/editproject.php, and general/newnotifications.php.

webTareas through 2.1 allows files/Default/ Directory Listing.

webTareas through 2.1 allows upload of the dangerous .exe and .shtml file types.