Vulnerability details

CVE-2026-64960

ATutor ATutor

Remote Code Execution via Unrestricted File Upload in ATutor

CVSS 4.0
8.7High

Official description

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 course_id 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, course_id=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.

CVSS scores

ScoreVersionSourceVector
8.7High 4.0 CVEProject cvelistV5 (CNA) (CERT-PL) CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

Affected products

VendorProductVersionsSource
ATutor ATutor 2.2.4 CVEProject cvelistV5 (CNA)

References and advisories

2
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Details

Published
2026-08-20
Last updated
2026-08-20
State
Published
Assigner (CNA)
CERT-PL

Exploit prediction (EPSS)

0.63%
Probability of exploitation in 30 days
50.5%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
None
Technical impact
Total

Weaknesses (CWE)

  • CWE-434
    Unrestricted upload of file with dangerous type