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Vulnerability record · CVE-2026-45053 · published 13 May 2026

CVE-2026-45053: Unrestricted file upload vulnerability

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.

9.1 CVSS 3.1 Critical EPSS 0.76% · top 46.5% CWE-434 · Unrestricted file upload Deferred
9.1CVSS 3.1 base score
0.76%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

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

References

LinkTags
https://github.com/cubecart/v6/security/advisories/GHSA-652f-8c88-25cx
https://github.com/cubecart/v6/security/advisories/GHSA-652f-8c88-25cx

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Source: NIST National Vulnerability Database (record CVE-2026-45053), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.