CVE-2020-25798 : Security Advisory and Response

A stored cross-site scripting (XSS) vulnerability in LimeSurvey before and including 3.21.1 allows authenticated users to inject arbitrary web script or HTML.

Understanding CVE-2020-25798

This CVE involves a stored XSS vulnerability in LimeSurvey that can be exploited by authenticated users with correct permissions.

What is CVE-2020-25798?

LimeSurvey versions up to 3.21.1 are affected by a stored XSS vulnerability.
Authenticated users can inject malicious web scripts or HTML via a specific parameter.
The injected code executes when viewing or editing survey attributes.

The Impact of CVE-2020-25798

Allows attackers to execute arbitrary JavaScript code in the browser.
Particularly risky for administrative users with elevated permissions.

Technical Details of CVE-2020-25798

This section provides more technical insights into the vulnerability.

Vulnerability Description

Stored cross-site scripting (XSS) vulnerability in LimeSurvey.
Exploitable by authenticated users with correct permissions.

Affected Systems and Versions

LimeSurvey versions before and including 3.21.1.

Exploitation Mechanism

Injection of malicious web script or HTML via a specific parameter.
Execution of injected code when survey attributes are accessed.

Mitigation and Prevention

Protecting systems from this vulnerability is crucial.

Immediate Steps to Take

Update LimeSurvey to version 3.22.0 or later.
Educate users on safe data input practices.

Long-Term Security Practices

Regular security training for users and administrators.
Implement input validation and output encoding in web applications.

Patching and Updates

Apply security patches promptly.
Monitor LimeSurvey for future security advisories.