GHSA-fpgg-r39h-3x5x: 
JavaScript vulnerability analysis and mitigation

The vulnerability GHSA-fpgg-r39h-3x5x affects the npm package 'cxt' and was identified as a malicious package containing cryptocurrency wallet exfiltration malware. The issue was discovered and reviewed on August 31, 2020, published to the GitHub Advisory Database on September 3, 2020, and last updated on January 9, 2023. All versions of the package (>= 0.0.0) are affected, and there are no patched versions available (GitHub Advisory).

The vulnerability has been assigned a Critical severity rating with a CVSS score of 9.1. The CVSS v3 base metrics indicate that the attack vector is Network-based, with Low attack complexity, requiring No privileges, and No user interaction. The scope is Unchanged, with High impact on both Confidentiality and Integrity, while having No impact on Availability. The vulnerability is associated with CWE-506 (GitHub Advisory).

The malicious package was specifically designed to find and exfiltrate cryptocurrency wallets from infected systems. Any computer that has this package installed or running should be considered fully compromised, with potential unauthorized access to all secrets and keys stored on the affected system (GitHub Advisory).

The package is inherently malicious, requiring no exploitation as its malicious functionality is built into all versions. The attack vector is network-based with low complexity, requiring no special privileges or user interaction to execute its malicious functions (GitHub Advisory).

Due to the severity of this malicious package, it is recommended to immediately remove the package from any system where it is installed. However, removal may not be sufficient as the system should be considered fully compromised. All secrets and keys stored on affected computers should be rotated immediately from a different, uncompromised system. It's important to note that removing the package may not eliminate all malicious software resulting from its installation (GitHub Advisory).