CVE-2021-28290 : What You Need to Know
Learn about CVE-2021-28290, a cross-site scripting (XSS) vulnerability in Skoruba IdentityServer4.Admin before 2.0.0. Understand the impact, affected versions, and mitigation steps.
This CVE-2021-28290 article provides an overview of a cross-site scripting (XSS) vulnerability found in Skoruba IdentityServer4.Admin before version 2.0.0, allowing unencoded values to be passed to the data-secret-value parameter.
Understanding CVE-2021-28290
In this section, we will delve into the details of CVE-2021-28290.
What is CVE-2021-28290?
CVE-2021-28290 is a cross-site scripting (XSS) vulnerability discovered in Skoruba IdentityServer4.Admin prior to version 2.0.0. It occurs when unencoded values are directly passed to the data-secret-value parameter, leading to potential XSS attacks.
The Impact of CVE-2021-28290
This vulnerability may allow attackers to execute malicious scripts in the context of a user's session, potentially leading to unauthorized access, data theft, or other malicious activities.
Technical Details of CVE-2021-28290
Let's explore the technical aspects of CVE-2021-28290.
Vulnerability Description
The vulnerability stems from insufficient input validation, allowing attackers to insert and execute scripts within the application.
Affected Systems and Versions
Skoruba IdentityServer4.Admin versions prior to 2.0.0 are affected by this XSS vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting crafted payloads into the data-secret-value parameter, tricking the application into executing malicious scripts.
Mitigation and Prevention
Discover how to mitigate and prevent the risks associated with CVE-2021-28290.
Immediate Steps to Take
Users are advised to update Skoruba IdentityServer4.Admin to version 2.0.0 or above to patch the XSS vulnerability and prevent potential attacks.
Long-Term Security Practices
Implement secure coding practices such as input validation, output encoding, and utilizing security libraries to prevent XSS vulnerabilities in web applications.
Patching and Updates
Regularly monitor for security updates and patches released by Skoruba IdentityServer4.Admin to address known security issues and protect the application from potential threats.