CVE-2026-70374

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 + ...).

CVSS 3.1

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

EPSS

1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-25)

CWE

CWE-78

Published

2026-08-05

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

References

• https://cve.turansec.uz/advisories/TRN-11FC0D88
• https://github.com/HashBrownCMS/hashbrown-cms

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