CVE-2019-16182 : Vulnerability Insights and Analysis

A security flaw known as reflected cross-site scripting (XSS) was discovered in Limesurvey prior to version 3.17.14. This vulnerability enables malicious external actors to insert unauthorized web script or HTML code by manipulating file extensions during the file upload process.

Understanding CVE-2019-16182

A reflected cross-site scripting (XSS) vulnerability in Limesurvey before version 3.17.14 allows remote attackers to inject arbitrary web script or HTML via file extensions of uploaded files.

What is CVE-2019-16182?

It is a reflected cross-site scripting (XSS) vulnerability in Limesurvey.
The vulnerability exists in versions prior to 3.17.14.
Attackers can exploit this flaw to insert unauthorized web script or HTML code.

The Impact of CVE-2019-16182

Malicious actors can manipulate file extensions during the upload process to execute unauthorized scripts.
This can lead to the injection of harmful content into the application, compromising its security.

Technical Details of CVE-2019-16182

A reflected cross-site scripting (XSS) vulnerability in Limesurvey before version 3.17.14.

Vulnerability Description

Type: Reflected Cross-Site Scripting (XSS)
Risk: High
Attack Vector: Remote
Complexity: Low

Affected Systems and Versions

Limesurvey versions prior to 3.17.14

Exploitation Mechanism

Attackers manipulate file extensions during the file upload process to inject malicious web script or HTML code.

Mitigation and Prevention

Immediate Steps to Take:

Update Limesurvey to version 3.17.14 or later to patch the vulnerability.
Be cautious when uploading files and avoid using potentially harmful file extensions.

Long-Term Security Practices:

Regularly monitor and update software to address security vulnerabilities.
Educate users on safe file upload practices to prevent XSS attacks.
Implement content security policies to mitigate XSS risks.
Conduct security audits to identify and address potential vulnerabilities.
Utilize web application firewalls to filter and block malicious traffic.

Patching and Updates:

Apply patches and updates provided by Limesurvey to fix the XSS vulnerability.