CVE-2026-64966: Path Traversal leading to Remote Code Execution in ATutor
ATutor is vulnerable to a Path Traversal vulnerability in ZIP extraction functionality. An attacker with instructor privileges can upload and extract a specially crafted ZIP archive, causing files to be written outside the intended extraction directory. This allows an attacker to place a server-executable .phtml file in the web root and achieve remote code execution with web server privileges on the underlying server.
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.
Affected Software
Event History
Frequently Asked Questions
What level of access does an attacker need?
The attacker needs instructor privileges in ATutor. They must be able to upload and extract a specially crafted ZIP archive.
What versions are confirmed vulnerable, and is a fix available?
Only ATutor 2.2.4 was tested and confirmed vulnerable. Other versions were not tested and may also be affected; the product is no longer actively supported and the vulnerabilities have not been fixed.
What privileges would code execution have on the server?
A successful exploit results in code execution with the privileges of the web server on the underlying server.