EUVD-2026-65478
GHSA-227x-v64x-3fq7
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-exposed endpoint requires authenticated company-owner role (PR:L, AC:L); arbitrary PHP execution yields full C/I/A impact on the vulnerable web server with no scope change.
Primary rating from Vendor (vulncheck).
CVSS VectorVendor: vulncheck
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Remote code execution in Crater Invoice through 6.0.6 is achievable by any authenticated company owner via a Zip Slip attack against the self-update API's unzip endpoint. Crafted ZIP archives containing path-traversal sequences (../) in entry names are passed without sanitization to PHP's ZipArchive::extractTo(), enabling arbitrary PHP file writes into the web-accessible public/ directory and subsequent webshell execution. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an active, authenticated session as a 'company owner' within Crater Invoice - this is a defined application-level role, not general user access, and must be legitimately provisioned or obtained via credential compromise. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 8.7 with AV:N/AC:L/AT:N/PR:L/UI:N accurately reflects a high-severity but not zero-barrier vulnerability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patched version has been identified at the time of analysis; the VulnCheck advisory (https://www.vulncheck.com/advisories/crater-invoice-path-traversal-rce-via-update-unzip-endpoint) should be monitored for patch releases. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit all systems running Crater Invoice to identify affected versions (6.0.6 and earlier) and immediately disable the self-update API endpoint at the application or network boundary. …
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Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
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