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CVE-2019-15751

CRITICAL

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.

Published: Oct 7, 2019 Modified: Jun 17, 2026
CWE-434

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products (1)

Vendor Product Version
sitos sitos_six 6.2.1

GitHub Security Advisory GHSA-7ffh-mq47-jr43

An unrestricted file upload vulnerability in SITOS six Build v6.2.1 allows remote attackers to...

Risk Scores

CVSS Score 9.8 / 10
EPSS Score 4.47%

Top 9% most likely to be exploited

Threat Score 40.5 / 100

Data Sources

NVD EPSS GitHub