Quick answers
- Is CVE-2026-45053 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-45053 being exploited in the wild.
- How severe is CVE-2026-45053?
- Critical severity, with a CVSS score of 9.1, published 13 May 2026.
- Which products and versions are affected?
- CubeCart 6.6.x, prior to 6.7.0.
- Is there a fix for CVE-2026-45053?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-45053 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-45053?
- Check whether you run CubeCart at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An arbitrary file upload vulnerability exists in the REST API File Manager endpoint (POST /api/v1/files) of CubeCart due to insufficient validation in 'classes/api/resources/apiresource_files.class.php'. The application fails to restrict executable file extensions and does not invoke standard security validators, allowing PHP files to be uploaded to the web-accessible 'images/source/' directory. Furthermore, a path traversal flaw in the 'filepath' parameter allows attackers to escape the intended directory and write files to the document root. An attacker with an API key possessing 'files:rw' permissions can exploit these flaws to achieve remote code execution (RCE). The vulnerability is fixed in version 6.7.0.
Affected products
- CubeCart CubeCart 6.6.x, prior to 6.7.0
Timeline
- 2026-05-07: advisory: Original GitHub security advisory published
- 2026-05-13: disclosed: CVE published to NVD