CVE-2026-120349
Received Received - Intake

Code Injection in XunRuiCMS via Mobile Site Directory

Publication date: 2026-11-02

Last updated on: 2026-11-02

Assigner: VulDB

Description
A security flaw has been discovered in dayrui XunRuiCMS up to 4.7.4. Affected by this issue is the function str_replace of the file /var/www/html/zzmob/index.php of the component Mobile Site Directory. The manipulation of the argument dirname results in code injection. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

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Meta Information

Published
2026-11-02
Last Modified
2026-11-02
Generated
2026-11-02
AI Q&A
2026-11-02
EPSS Evaluated
N/A
NVD
CVE-2026-120349

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
dayrui XunRuiCMS 4.7.0
dayrui XunRuiCMS 4.7.1
dayrui XunRuiCMS 4.7.2
dayrui XunRuiCMS 4.7.3
dayrui XunRuiCMS 4.7.4

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-94 The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
CWE-74 The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Attack-Flow Graph

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Executive Summary

CVE-2026-120349 is a code injection vulnerability in XunRuiCMS versions up to 4.7.4. It allows remote attackers to execute arbitrary PHP code by manipulating the dirname parameter in the mobile-site directory function. The flaw occurs because user input is not properly escaped when generating PHP files, enabling attackers to inject malicious code that executes on the server.

Detection Guidance

Check for unauthorized PHP files in the web root, particularly in the mobile site directory. Look for files with unusual names or recent modification dates. Inspect the index.php file in /var/www/html/zzmob/ for unexpected code injections or modifications. Review server logs for requests containing suspicious directory name parameters.

Impact Analysis

This vulnerability can lead to remote code execution, allowing attackers to take full control of the affected server. They could steal sensitive data, install malware, deface websites, or use the server for further attacks. The exploit requires only a single authenticated request and persists even if configurations are restored.

Compliance Impact

This vulnerability likely violates compliance requirements for data protection and security, such as GDPR and HIPAA, due to unauthorized code execution and potential data breaches. It demonstrates inadequate security controls, which could result in regulatory fines and reputational damage.

Mitigation Strategies

Update XunRuiCMS to the latest version if available. If not, restrict write permissions to the web root and mobile site directory. Implement strict input validation for directory name parameters. Remove any unauthorized PHP files and restore from a clean backup. Apply least privilege to the web server user and disable PHP execution in the mobile site directory if possible.

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