ATutor Gameme module allows users to upload files of any type and extension without restriction. Due to improper handling of file uploads, files are stored in a web-accessible location before their content is validated. An authenticated attacker who knows a valid courseid can upload a server-executable malicious script. The uploaded file can then be requested over HTTP, resulting in remote code execution as the web server process user. In most cases, courseid=0 can be used, as it commonly represents the global context.
Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
ATutor is vulnerable to authentication bypass . Although a token validation check is present in the auto-login functionality, the values required for token validation remain uninitialized in certain code paths. An unauthenticated attacker who can determine a user's identifier and registration timestamp can generate a valid token and authenticate as an existing user, including administrator, without knowing the password.
Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
ATutor is vulnerable to Missing Authorization Check on Test and Question Import endpoints. A low-privileged authenticated user (e.g. a student) enrolled in a course can bypass authorization checks by sending requests directly to the backend import endpoints, allowing the unauthorized import of tests and questions within a course.
Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
A path traversal vulnerability in ATutor's error log viewer allows an attacker with administrative privileges to access arbitrary files outside the intended logs directory. This can lead to unauthorized access to sensitive files and other resources accessible to the web server process.
Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
A path traversal vulnerability in ATutor allows an authenticated user to access files from other course directories when the ATFORCEGETFILE configuration option is enabled. This can lead to unauthorized access to files and disclosure of information about the filesystem structure.
Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
ATutor generates predictable email confirmation tokens due to the use of insufficiently random values in the account confirmation functionality. Due to the use of predictable values related to user registration, an attacker who knows or can predict these values can guess valid account activation tokens. This allows an attacker to activate an unconfirmed account without access to the victim's email inbox. Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
ATutor is vulnerable to Server-Side request forgery in import functionalities. An authenticated administrator can make the server request arbitrary internal HTTP endpoints, cloud metadata services, or local files via file:// if the PHP environment permits URL wrappers.
Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
ATutor is vulnerable to Insecure Direct Object Reference (IDOR) attack in profile picture related endpoints. Any authenticated user, including a student, can supply another user's memberid in a POST request to the profile album endpoint and permanently delete that user's profile picture, including those of instructors and administrators.
Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
ATutor is vulnerable to Reflected XSS via popup parameter in preview.php. An authenticated attacker can inject a double quote into the popup parameter, break out of the attribute value, and append a new event handler such as onload. The related previewtop.php file sanitises these parameters, but that does not prevent XSS in the parent frameset rendered by preview.php itself.
Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
ATutor is vulnerable to Reflected XSS in /install/install.php endpoint. An attacker can provide a specially crafted URL that, when opened, results in arbitrary JavaScript execution in the victim's browser.
Product is no longer actively supported. Maintainers of this project were notified early about this vulnerability, but did not respond with the details of the vulnerability or vulnerable version range. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
ATutor is vulnerable to Reflected XSS in /install/upgrade.php endpoint. An attacker can provide a specially crafted URL that, when opened, results in arbitrary JavaScript execution in the victim's browser.
Product is no longer actively supported. Maintainers of this project were notified early about this vulnerability, but did not respond with the details of the vulnerability or vulnerable version range. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
Multiple Cross-Site Scripting (XSS) issues were discovered in ATutor 2.2.2. The vulnerabilities exist due to insufficient filtration of user-supplied data passed to several pages (langcode in themes//admin/systempreferences/languageedit.tmpl.php). An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.
Cross-site scripting (XSS) vulnerability in mods/standard/forums/admin/forumadd.php in ATutor 2.1.1 allows remote authenticated administrators to inject arbitrary web script or HTML via the title parameter in an addforum action. NOTE: the original disclosure also reported issues that may not cross privilege boundaries.
Cross-site request forgery (CSRF) vulnerability in installmodules.php in ATutor before 2.2.2 allows remote attackers to hijack the authentication of users for requests that upload arbitrary files and execute arbitrary PHP code via vectors involving a crafted zip file.
Multiple cross-site scripting (XSS) vulnerabilities in ATutor 1.6.4 allow remote authenticated users, with Instructor privileges, to inject arbitrary web script or HTML via the (1) Question and (2) Choice fields in tools/polls/add.php, the (3) Type and (4) Title fields in tools/groups/createmanual.php, and the (5) Title field in assignments/addassignment.php. NOTE: some of these details are obtained from third party information.
ATutor 2.2.4 contains a SQL injection vulnerability in the admin user deletion page that allows authenticated attackers to manipulate database queries through the 'id' parameter. Attackers can exploit the vulnerability by injecting malicious SQL code into the 'id' parameter of the admindelete.php script to potentially extract or modify database information.
A stored-self XSS exists in ATutor through v2.2.4, allowing an attacker to execute HTML or JavaScript code in a vulnerable Real Name field to /mods/core/users/admins/myedit.php.
Unrestricted file upload vulnerability in mods/core/properties/lib/course.inc.php in ATutor before 2.2 patch 6 allows remote authenticated users to execute arbitrary PHP code by uploading a file with a PHP extension as a customicon for a new course, then accessing it via a direct request to the file in content/.
confirm.php in ATutor 2.2 and earlier allows remote attackers to bypass authentication and gain access as an existing user via the autologin parameter.