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CVE-2026-45053— CubeCart: Authenticated Arbitrary File Upload to RCE in REST Files API

Quick assessment

Affected
cubecart v6
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.

CubeCart是CubeCart开源的一个电子商务软件。 CubeCart 6.7.0之前版本存在代码问题漏洞，该漏洞源于REST API文件管理器端点允许持有API密钥的用户上传PHP源文件到web可访问目录，结合路径遍历漏洞，可能导致远程代码执行。

CVSS 9.1 · Critical EPSS 0.76% · P54

Affected Version Matrix 1

VendorProduct Version RangeStatus
cubecart v6 < 6.7.0 affected
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I. Basic Information for CVE-2026-45053

Vulnerability Information
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Vulnerability Title
CubeCart: Authenticated Arbitrary File Upload to RCE in REST Files API
Source: CVE Program / CVE List V5
Vulnerability Description
CubeCart is an ecommerce software solution. Prior to 6.7.0, an Authenticated Arbitrary File Upload vulnerability exists in the REST API File Manager endpoint (POST /api/v1/files) of CubeCart. The endpoint allows any holder of an API key with files:rw permission to upload PHP source files into the web-accessible images/source/ directory, where they are executed by the web server. Combined with a path-traversal flaw in the same endpoint's filepath parameter, a single API request writes a webshell anywhere the webserver process can write — including the document root — yielding full Remote Code Execution. This vulnerability is fixed in 6.7.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
CubeCart 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CubeCart是CubeCart开源的一个电子商务软件。 CubeCart 6.7.0之前版本存在代码问题漏洞，该漏洞源于REST API文件管理器端点允许持有API密钥的用户上传PHP源文件到web可访问目录，结合路径遍历漏洞，可能导致远程代码执行。
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
cubecart v6 < 6.7.0 -

II. Public POCs for CVE-2026-45053

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III. Intelligence Information for CVE-2026-45053

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Vendor Advisories for CVE-2026-45053 (1)

Same Patch Batch · cubecart · 2026-05-13 · 9 CVEs total

CVE-2026-45714 9.1 CRITICAL CubeCart: Server-Side Template Injection (SSTI) in Smarty Templates leading to RCE
CVE-2026-44377 9.1 CRITICAL CubeCart: Server-Side Template Injection (SSTI) in Smarty Templates leading to RCE
CVE-2026-45055 8.1 HIGH CubeCart: Pre-Authenticated Password Reset Link Poisoning via HTTP Host Header
CVE-2026-45708 7.2 HIGH CubeCart: Authenticated RCE via Invoice Template → Order Print
CVE-2026-39358 7.2 HIGH CubeCart: Time-based Blind SQL Injection
CVE-2026-44376 6.1 MEDIUM CubeCart: Reflected XSS in Store Search Bar
CVE-2026-45054 4.9 MEDIUM CubeCart: Authenticated SQL Injection via `sort[]` Parameter in Admin Orders Transactions
CVE-2026-39428 4.8 MEDIUM CubeCart: Stored Cross-Site Scripting (XSS)

IV. Related Vulnerabilities

Same product: v6
Same vendor: cubecart
Same weakness: CWE-434

V. Comments for CVE-2026-45053

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