CVE-2026-78839

Published Sep 4, 2026 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Description
An arbitrary file upload vulnerability in AppNitro MachForm v30 allows attackers to execute arbitrary code via uploading a crafted .phar file.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Appnitro
Appnitro machform
Vendors & Products Appnitro
Appnitro machform
Type Values Removed Values Added
Title Arbitrary File Upload Allows PHAR-based Code Execution in AppNitro MachForm v30
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Title Arbitrary File Upload Allows PHAR-based Code Execution in AppNitro MachForm v30
Weaknesses CWE-434
Type Values Removed Values Added
Description An arbitrary file upload vulnerability in AppNitro MachForm v30 allows attackers to execute arbitrary code via uploading a crafted .phar file.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 9, 2026, 7:34 PM
Reserved
Aug 25, 2026, 12:00 AM
Status
Deferred
Published
Sep 4, 2026, 7:17 PM
Modified
Sep 9, 2026, 8:20 PM