CVE-2019-16173 : Security Advisory and Response

In versions of LimeSurvey prior to v3.17.14, a vulnerability allows for reflective cross-site scripting (XSS), enabling privilege escalation from lower to higher privileged accounts such as SuperAdmin.

Understanding CVE-2019-16173

This CVE identifies a security flaw in LimeSurvey versions before v3.17.14 that can lead to XSS attacks and privilege escalation.

What is CVE-2019-16173?

CVE-2019-16173 is a vulnerability in LimeSurvey that permits reflective cross-site scripting, potentially allowing attackers to elevate their privileges within the application.

The Impact of CVE-2019-16173

The vulnerability in LimeSurvey before v3.17.14 can result in the escalation of privileges from a lower privileged account to a higher privileged account, like SuperAdmin. This can lead to unauthorized access and control over the system.

Technical Details of CVE-2019-16173

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability in LimeSurvey allows for reflected XSS, enabling attackers to escalate their privileges within the application.

Affected Systems and Versions

LimeSurvey versions prior to v3.17.14 are affected by this vulnerability.

Exploitation Mechanism

The vulnerability resides in the file Survey_Common_Action.php within the application/core directory of LimeSurvey.

Mitigation and Prevention

Protecting systems from CVE-2019-16173 is crucial to maintaining security.

Immediate Steps to Take

Update LimeSurvey to version v3.17.14 or newer to mitigate the vulnerability.
Regularly monitor for security advisories and patches from LimeSurvey.

Long-Term Security Practices

Implement secure coding practices to prevent XSS vulnerabilities.
Conduct regular security assessments and penetration testing to identify and address potential security weaknesses.

Patching and Updates

Apply security patches promptly to ensure that known vulnerabilities are addressed and system security is maintained.