Is CVE-2019-15751 actively exploited?

No active exploitation of CVE-2019-15751 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-15751 be exploited remotely?

Yes. CVE-2019-15751 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-15751?

CVE-2019-15751 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2019-15751

CWE-434Published: October 7, 2019· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2019-15751 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.