SEPTEMBER 17, 2026
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Case File

CVE-2026-78839

HIGH · CVSS 8.1 EPSS 0.51% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-04 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

AppNitro MachForm v30 is vulnerable to an arbitrary file upload flaw that permits attackers to upload a specially crafted .phar file, potentially leading to arbitrary code execution on the server. Organizations using this version of MachForm should prioritize remediation efforts to mitigate the risk of exploitation, as this could lead to unauthorized access and control over sensitive data. Immediate action is recommended for those managing web applications that rely on this software.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
External Security References

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-78839
Severity
HIGH
CVSS
8.1
EPSS
0.51%

Original NVD Description

An arbitrary file upload vulnerability in AppNitro MachForm v30 allows attackers to execute arbitrary code via uploading a crafted .phar file.