Arbitrary file upload in Sitos Six

CVE-2019-15751

An unrestricted file upload vulnerability in SITOS six Build v6.2.1 allows remote attackers to execute arbitrary code by uploading a SCORM file with an executable extension. This allows an unauthenticated attacker to upload a malicious file (containing PHP code to execute operating system commands) to the web root of the application.

Vulnerability class: Unrestricted File Upload

EPSS: 0.045 (90.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-15751?
CVE-2019-15751 is a critical-severity vulnerability in Sitos Six, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2019-10-07.
How severe is CVE-2019-15751?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-15751 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.