AUGUST 16, 2026
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Case File

CVE-2026-70374

HIGH · CVSS 8.8 EPSS 0.97% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-05 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

HashBrown CMS versions up to 1.4.6 are vulnerable to an OS Command Injection in the media upload thumbnail generation process, allowing authenticated users with media resource permissions to execute arbitrary commands on the server. This vulnerability arises from improper handling of file paths, where user-controlled input can bypass MIME-type checks and lead to command execution within the Node.js environment. Organizations using this CMS should prioritize remediation to mitigate potential exploitation risks.

Public Exploit Signal

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

GitHub PoC Links

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

CVE
CVE-2026-70374
Severity
HIGH
CVSS
8.8
EPSS
0.97%

Original NVD Description

HashBrown CMS through 1.4.6 contains an OS Command Injection vulnerability (CWE-78) in the media upload thumbnail generation routine. Media.generateThumbnail in src/Server/Entity/Resource/Media.js builds a temporary file path as 'thumbnail' + Path.extname(filename) and passes it, unescaped, into a shell command executed via AppService.exec ('convert ' + tempFile + ...).