CVE-2026-70374

HighCVSS 8.8/10Last modified Oct 24, 2026

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 + ...).

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-78

Affected software

VendorProductVersions
HashBrownCMShashbrown-cms<= 1.4.6

References

Timeline

Published
Aug 5, 2026
Last modified
Oct 24, 2026
NVD status
Deferred

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