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CVE-2026-57863— Crater Invoice 6.0.6 Path Traversal RCE via update/unzip endpoint

Quick assessment

Affected
crater-invoice-inc crater
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Crater Invoice是Crater Invoice公司的一款发票管理工具。 Crater Invoice 6.0.6及之前版本存在路径遍历漏洞，该漏洞源于自更新API存在路径遍历问题，攻击者可通过向unzip端点提供包含../序列的特制ZIP压缩包，利用未清理的ZIP条目名称写入任意PHP文件到Web可访问目录，从而实现远程代码执行。

CVSS 8.8 · High EPSS 0.90% · P59

Affected Version Matrix 1

VendorProduct Version RangeStatus
crater-invoice-inc crater ≤ 6.0.6 affected
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I. Basic Information for CVE-2026-57863

Vulnerability Information
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Vulnerability Title
Crater Invoice 6.0.6 Path Traversal RCE via update/unzip endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Crater Invoice 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Crater Invoice是Crater Invoice公司的一款发票管理工具。 Crater Invoice 6.0.6及之前版本存在路径遍历漏洞，该漏洞源于自更新API存在路径遍历问题，攻击者可通过向unzip端点提供包含../序列的特制ZIP压缩包，利用未清理的ZIP条目名称写入任意PHP文件到Web可访问目录，从而实现远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
crater-invoice-inc crater 0 ~ 6.0.6 -

II. Public POCs for CVE-2026-57863

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III. Intelligence Information for CVE-2026-57863

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Vendor Advisories for CVE-2026-57863 (1)

Proof of Concept for CVE-2026-57863 (1)

IV. Related Vulnerabilities

Same product: crater
Same vendor: crater-invoice-inc
Same weakness: CWE-22

V. Comments for CVE-2026-57863

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