CVE-2024-49314 in JiangQie Free Mini Program Plugin
Summary
by MITRE • 10/17/2024
Unrestricted Upload of File with Dangerous Type vulnerability in jiangqie JiangQie Free Mini Program jiangqie-free-mini-program allows Upload a Web Shell to a Web Server.This issue affects JiangQie Free Mini Program: from n/a through <= 2.5.2.
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Analysis
by VulDB Data Team • 04/06/2026
The vulnerability identified as CVE-2024-49314 represents a critical security flaw in the jiangqie JiangQie Free Mini Program application, specifically within version ranges from unspecified initial versions through 2.5.2. This issue manifests as an unrestricted file upload vulnerability that permits malicious actors to bypass normal file validation mechanisms and upload potentially dangerous file types including web shells. The vulnerability stems from insufficient input validation and sanitization processes that fail to properly restrict file types or content, creating an avenue for arbitrary code execution on the target web server. The affected application appears to lack proper file type checking, size limitations, or content verification measures that would normally prevent the upload of executable or script files.
The technical exploitation of this vulnerability occurs through the application's file upload functionality, where attackers can submit malicious files without proper authorization or validation. When the system accepts these uploads without proper security checks, it creates a persistent threat vector that allows attackers to deploy web shells directly onto the web server. These web shells can then be used to execute arbitrary commands, escalate privileges, access sensitive data, or establish persistent backdoors within the compromised environment. The vulnerability aligns with CWE-434 which specifically addresses the issue of unrestricted file uploads, and represents a direct violation of secure coding practices that mandate proper input validation and file type restriction. The attack surface is particularly concerning as it enables remote code execution capabilities that can be leveraged for complete system compromise.
The operational impact of this vulnerability extends beyond simple data theft or service disruption to encompass full system compromise and potential lateral movement within network environments. Once an attacker successfully uploads a web shell, they gain persistent access to the web server and can use it as a foothold for further reconnaissance and attack progression. This vulnerability directly maps to several ATT&CK techniques including T1190 for exploitation of remote services, T1059 for command and scripting interpreter usage, and T1078 for valid accounts usage. The risk assessment indicates that this vulnerability could enable attackers to establish persistent access, exfiltrate sensitive data, and potentially use the compromised server as a launch point for attacks against other systems within the network infrastructure. Organizations using affected versions of this mini program are particularly vulnerable to advanced persistent threats and targeted attacks that exploit this weakness.
Mitigation strategies for CVE-2024-49314 must address both immediate remediation and long-term security hardening measures. The most critical immediate action involves upgrading to a patched version of the jiangqie JiangQie Free Mini Program beyond version 2.5.2 where the vulnerability has been addressed. Organizations should implement comprehensive file upload validation mechanisms that enforce strict file type checking, content verification, and proper sanitization of uploaded files. Security controls should include mandatory file extension filtering, MIME type validation, and the implementation of secure file storage practices that separate uploaded content from executable code. Additionally, deployment of web application firewalls, input validation layers, and regular security scanning should be implemented to detect and prevent similar vulnerabilities in other components. The vulnerability serves as a reminder of the importance of secure file handling practices and the necessity of implementing defense-in-depth strategies to protect against unauthorized file uploads and potential code execution attacks.