CVE-2017-18358 : Security Advisory and Response

LimeSurvey before version 2.72.4 is vulnerable to Stored Cross-Site Scripting (XSS) through the "Continue Later" or "Resume Later" feature, allowing exploitation via mishandling of email addresses within the admin panel.

Understanding CVE-2017-18358

This CVE entry highlights a security vulnerability in LimeSurvey versions prior to 2.72.4, exposing users to potential XSS attacks.

What is CVE-2017-18358?

Stored Cross-Site Scripting (XSS) vulnerability in LimeSurvey versions before 2.72.4, triggered by entering an email address in the "Continue Later" or "Resume Later" feature, leading to email address mishandling in the admin panel.

The Impact of CVE-2017-18358

The vulnerability allows malicious actors to execute arbitrary code by injecting scripts into web pages viewed by other users, potentially compromising sensitive data and user interactions.

Technical Details of CVE-2017-18358

LimeSurvey's security flaw in versions preceding 2.72.4 exposes users to the risk of Stored Cross-Site Scripting (XSS) attacks.

Vulnerability Description

The vulnerability arises from improper handling of email addresses inputted through the "Continue Later" or "Resume Later" feature, enabling attackers to inject malicious scripts.

Affected Systems and Versions

LimeSurvey versions before 2.72.4

Exploitation Mechanism

Attackers exploit the vulnerability by inserting malicious scripts into the email address field, which are then executed within the admin panel.

Mitigation and Prevention

Taking immediate action and implementing long-term security practices are crucial to mitigating the risks associated with CVE-2017-18358.

Immediate Steps to Take

Upgrade LimeSurvey to version 2.72.4 or newer to patch the vulnerability.
Avoid entering untrusted email addresses in LimeSurvey's "Continue Later" or "Resume Later" feature.

Long-Term Security Practices

Regularly update LimeSurvey to the latest version to ensure protection against known vulnerabilities.
Educate users on safe email address handling practices to prevent XSS attacks.

Patching and Updates

Apply security patches promptly to address any newly discovered vulnerabilities and enhance system security.