Arbitrary file upload in 4xmen Xshop
CVE-2026-49849
xShop is an open-source shop developed in Laravel. An Unrestricted File Upload vulnerability in xShop version 3.0.3 allows an authenticated administrator to upload executable files (e.g., .php). By uploading a specially crafted php file, an attacker can achieve Remote Code Execution (RCE) on the server, leading to a full system compromise. Version 3.0.4 fixes the issue.
Vulnerability class: Unrestricted File Upload
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
Affected products
- 4xmen Xshop — versions = 3.0.3
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-49849?
- CVE-2026-49849 is a critical-severity vulnerability in 4xmen Xshop, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.1/10. Published 2026-08-21.
- How severe is CVE-2026-49849?
- Critical severity. CVSS v3 base score is 9.1 out of 10.