CVE-2021-39268 : Security Advisory and Response

SuiteCRM before 7.11.19 is vulnerable to persistent cross-site scripting (XSS) attacks via malicious SVG files.

Understanding CVE-2021-39268

SuiteCRM, prior to version 7.11.19, is susceptible to a specific type of XSS attack that allows a remote attacker to inject malicious JavaScript code using SVG files.

What is CVE-2021-39268?

Persistent cross-site scripting (XSS) vulnerability in SuiteCRM's web interface enables threat actors to execute arbitrary JavaScript by exploiting clean_file_output bypass.

The Impact of CVE-2021-39268

This vulnerability could lead to various malicious activities, including data theft, session hijacking, and unauthorized access to sensitive information.

Technical Details of CVE-2021-39268

SuiteCRM's XSS vulnerability has the following technical specifics:

Vulnerability Description

XSS flaw in SuiteCRM's web interface
Exploitable via SVG files

Affected Systems and Versions

Product: SuiteCRM
Versions Affected: Before 7.11.19

Exploitation Mechanism

Remote attacker exploits clean_file_output protection bypass

Mitigation and Prevention

It is crucial to take immediate action to protect systems from CVE-2021-39268:

Immediate Steps to Take

Update SuiteCRM to version 7.11.19 or newer
Avoid opening untrusted SVG files in SuiteCRM
Regularly monitor and restrict access to vulnerable systems

Long-Term Security Practices

Implement strict input validation mechanisms
Conduct routine security audits and penetration testing
Educate users about the risks of opening files from untrusted sources

Patching and Updates

Apply security patches promptly
Stay informed about security updates released by SuiteCRM