CVE-2021-27180 : What You Need to Know
Discover the impact of CVE-2021-27180, a Reflected Cross-Site Scripting (XSS) flaw in MDaemon's Webmail before 20.0.4. Learn about the vulnerability, affected systems, exploitation, and mitigation steps.
An issue was discovered in MDaemon before 20.0.4 which leads to Reflected Cross-Site Scripting (XSS) in Webmail (also known as WorldClient). This vulnerability can be exploited through a GET request, enabling malicious actors to carry out actions using the privileges of the targeted user.
Understanding CVE-2021-27180
This CVE highlights a security flaw in MDaemon's Webmail application, potentially allowing attackers to execute unauthorized actions through XSS.
What is CVE-2021-27180?
CVE-2021-27180 is a vulnerability found in MDaemon's Webmail interface, prior to version 20.0.4, that permits Reflected XSS attacks via a simple GET request.
The Impact of CVE-2021-27180
The exploitation of this vulnerability could result in attackers operating with the permissions of the affected user, potentially leading to unauthorized actions being carried out on the system.
Technical Details of CVE-2021-27180
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The flaw in MDaemon before version 20.0.4 allows for Reflected XSS in Webmail, enabling malicious activities through an attacker's crafted GET request.
Affected Systems and Versions
All versions of MDaemon before 20.0.4 are impacted by this vulnerability.
Exploitation Mechanism
The vulnerability is exploitable through a GET request to the Webmail interface, facilitating unauthorized actions with the user's privileges.
Mitigation and Prevention
Below are recommendations to mitigate the risks associated with CVE-2021-27180.
Immediate Steps to Take
Users should update MDaemon to version 20.0.4 or newer to remediate this vulnerability and prevent potential exploitation.
Long-Term Security Practices
Implementing regular security assessments and awareness training can help in identifying and preventing XSS vulnerabilities in the long term.
Patching and Updates
Regularly applying software updates and patches provided by MDaemon is crucial to maintaining the security of the system.