CVE-2020-18723 : Security Advisory and Response
Learn about CVE-2020-18723, a stored cross-site scripting vulnerability in MDaemon webmail 19.5.5 allowing attackers to execute code when forwarding emails. Find mitigation steps and preventive measures.
A stored cross-site scripting (XSS) vulnerability in MDaemon webmail 19.5.5 allows attackers to execute malicious code when forwarding emails.
Understanding CVE-2020-18723
This CVE involves a security issue in MDaemon webmail version 19.5.5 that enables attackers to perform cross-site scripting attacks.
What is CVE-2020-18723?
This CVE identifies a stored cross-site scripting vulnerability in the file attachment field of MDaemon webmail 19.5.5. It permits attackers to execute code on the recipient's side when forwarding an email, potentially leading to harmful activities.
The Impact of CVE-2020-18723
The vulnerability allows malicious actors to inject and execute code on the email recipient's side, posing risks of unauthorized actions and data compromise.
Technical Details of CVE-2020-18723
This section delves into the specifics of the vulnerability.
Vulnerability Description
The flaw in MDaemon webmail 19.5.5 enables stored cross-site scripting attacks, empowering threat actors to run malicious code during email forwarding.
Affected Systems and Versions
- Affected System: MDaemon webmail 19.5.5
- Affected Version: 19.5.5
Exploitation Mechanism
Attackers can exploit this vulnerability by inserting malicious scripts into the file attachment field of MDaemon webmail 19.5.5, triggering the execution of harmful code upon email forwarding.
Mitigation and Prevention
Protecting systems from CVE-2020-18723 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Update MDaemon webmail to the latest version to patch the vulnerability.
- Educate users about the risks of opening attachments or forwarding emails from unknown sources.
Long-Term Security Practices
- Implement email filtering mechanisms to detect and block malicious attachments.
- Regularly monitor and audit email activities to identify suspicious behavior.
Patching and Updates
- Apply security updates and patches provided by MDaemon promptly to address the vulnerability and enhance system security.