CVE-2018-11351 Explained : Impact and Mitigation

Jirafeau script.php before version 3.4.1 is vulnerable to two stored Cross-Site Scripting (XSS) issues that can be exploited without authentication, targeting administrators.

Understanding CVE-2018-11351

This CVE involves stored XSS vulnerabilities in Jirafeau's script.php file, allowing malicious JavaScript execution without authentication.

What is CVE-2018-11351?

Jirafeau's script.php version prior to 3.4.1 contains two stored XSS vulnerabilities that can execute JavaScript payloads when an administrator performs specific actions.

The Impact of CVE-2018-11351

These vulnerabilities enable attackers to inject malicious code through shared file descriptions, posing a risk to administrators who interact with uploaded files.

Technical Details of CVE-2018-11351

Jirafeau script.php's vulnerability details and affected systems.

Vulnerability Description

The vulnerabilities reside in the shared files' description file, triggered by actions like searching or listing uploaded files, targeting administrators.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: Not applicable

Exploitation Mechanism

The vulnerabilities exploit the Content-Type field and the filename parameter, allowing the execution of JavaScript payloads without authentication.

Mitigation and Prevention

Protecting systems from CVE-2018-11351.

Immediate Steps to Take

Upgrade Jirafeau to version 3.4.1 or later to patch the vulnerabilities.
Avoid interacting with shared files until the system is updated.

Long-Term Security Practices

Regularly update software to the latest versions to mitigate known vulnerabilities.
Educate administrators on safe file handling practices to prevent XSS attacks.

Patching and Updates

Apply security patches promptly to address vulnerabilities and enhance system security.