Unrestricted File Upload Vulnerability in xShop by 4xmen
CVE-2026-49849

9.1CRITICAL

Key Information:

Vendor

4xmen

Status
Xshop
Vendor
CVE Published:
21 August 2026

What is CVE-2026-49849?

An Unrestricted File Upload flaw exists in xShop version 3.0.3, allowing authenticated administrators to upload malicious executable files, including PHP scripts. This vulnerability could lead to Remote Code Execution (RCE), enabling attackers to compromise the entire server system. Users are strongly advised to upgrade to version 3.0.4 where this issue has been addressed. For further insights and fixes, please refer to the official advisory.

Affected Version(s)

xshop = 3.0.3

References

https://github.com/4xmen/xshop/security/advisories/GHSA-f...
x_refsource_CONFIRM
https://github.com/4xmen/xshop/pull/64
x_refsource_MISC
https://github.com/4xmen/xshop/commit/dd4a3add9d6f5b5f9dd...
x_refsource_MISC

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.