CVE-2020-18660 : What You Need to Know
Learn about CVE-2020-18660 affecting GetSimpleCMS <=3.3.15. Find out how attackers exploit an open redirect vulnerability in admin/changedata.php and steps to prevent redirection to malicious sites.
GetSimpleCMS <=3.3.15 has an open redirect vulnerability in admin/changedata.php, allowing attackers to redirect users to malicious websites.
Understanding CVE-2020-18660
What is CVE-2020-18660?
GetSimpleCMS <=3.3.15 is susceptible to an open redirect issue in the admin/changedata.php file through the redirect function using the url parameter.
The Impact of CVE-2020-18660
This vulnerability could be exploited by attackers to trick users into visiting malicious websites, potentially leading to phishing attacks or the installation of malware.
Technical Details of CVE-2020-18660
Vulnerability Description
The vulnerability in GetSimpleCMS <=3.3.15 allows malicious actors to craft URLs that redirect users to external sites.
Affected Systems and Versions
- Product: GetSimpleCMS
- Version: <=3.3.15
Exploitation Mechanism
Attackers can manipulate the url parameter in admin/changedata.php to redirect users to malicious websites.
Mitigation and Prevention
Immediate Steps to Take
- Avoid clicking on untrusted links received via emails or messages.
- Regularly update GetSimpleCMS to the latest version to patch the vulnerability.
Long-Term Security Practices
- Educate users about the risks of clicking on unknown links.
- Implement URL filtering mechanisms to block suspicious redirects.
- Monitor website traffic for unusual redirection patterns.
Patching and Updates
Ensure that GetSimpleCMS is updated to version 3.3.16 or later to mitigate the open redirect vulnerability.