CVE-2026-70374

8.8 HIGHpublic exploit available

Published 2026-08-05 · Updated 2026-08-10

AI risk analysis

Summary: The flaw allows attackers to inject OS commands via media uploads, leading to potential remote code execution.
Exploitability: Exploitation requires access to upload media files and knowledge of the specific command injection vulnerability.
Blast radius: If exploited, this could lead to complete compromise of the affected system and data loss.
Prioritized remediation: Update to a patched version of HashBrown CMS or apply a fix that properly sanitizes user inputs.

rceos-command-injectionweb-app

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

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 + ...).

CVSS vector

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

Weaknesses

CWE-78

Public exploit & PoC references

https://github.com/HashBrownCMS/hashbrown-cms

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.