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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.47% probability · 91th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- sitos/sitos six
- Source
- cve@mitre.org
EPSS 4.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://www.contextis.com/en/resources/advisories/cve-2019-15751Third Party Advisory
- https://www.contextis.com/en/resources/advisories/cve-2019-15751Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.