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CVE-2026-49849

9.1 · CRITICAL

xShop is an open-source shop developed in Laravel.

Published Aug 21, 2026CWE-434EPSS 0.99%

Overview

CVE-2026-49849 is a critical-severity vulnerability. It was published on August 21, 2026 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/4xmen/xshop/commit/dd4a3add9d6f5b5f9dde9685e97f51057903a1dbGitHubgithub.com/4xmen/xshop/pull/64GitHubgithub.com/4xmen/xshop/releases/tag/v3.0.4GitHubgithub.com/4xmen/xshop/security/advisories/GHSA-fc35-qjg3-f6g7GitHubgithub.com/4xmen/xshop/security/advisories/GHSA-fc35-qjg3-f6g7

How CyberStrike helps

Frequently asked questions

What is CVE-2026-49849?

CVE-2026-49849 is a critical-severity vulnerability. It was published on August 21, 2026 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2026-49849?

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-49849?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-49849?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-49849 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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