CVE-2026-70374
HIGHHashBrown CMS: OS Command Injection in Media Upload Thumbnail Generation
Title source: cnaDescription
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 + ...).
References (2)
Core 2
Core References
third-party-advisory
https://github.com/HashBrownCMS/hashbrown-cms
third-party-advisory
https://cve.turansec.uz/advisories/TRN-11FC0D88
Scores
CVSS v3
8.8
EPSS
0.0097
EPSS Percentile
58.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-78
Status
published
Products (1)
HashBrownCMS/hashbrown-cms
< 1.4.6
Published
Aug 05, 2026
Tracked Since
Aug 05, 2026