THREATPORT/VULNERABILITY/CVE-2019-15751
CRITICAL SEVERITY

CVE-2019-15751

Sitos Six vulnerability

CVSS
9.8
EPSS
4.5%
EPSS pct
90th
Exploited
No known
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.
Affected vendor
Sitos
Affected product
Sitos Six
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-434 — Unrestricted Upload of File with Dangerous Type
Published
2019-10-07

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 4.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2019-15751

  • Confirm whether Sitos Sitos Six is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-15751.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-15751

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-15751 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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