CVE-2026-57863: Crater-Invoice-Inc Crater

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

Crater Invoice through 6.0.6 contains a path traversal vulnerability in the self-update API that allows authenticated company owners to write arbitrary files outside the intended extraction directory by supplying crafted ZIP archives with ../ sequences to the unzip endpoint. Attackers can exploit unsanitized ZIP entry names passed to PHP's ZipArchive::extractTo() to write arbitrary PHP files into the web-accessible public directory and achieve remote code execution on the server.

Affected products

• Crater-Invoice-Inc Crater: up to and including 6.0.6

Published 2026-08-25. Last modified 2026-09-24.