Lightning Flow Scanner is Vulnerable to Code Injection via Unsafe Use of new Function() in APIVersion Rule

Vulnerability Description

Lightning Flow Scanner provides a A CLI plugin, VS Code Extension and GitHub Action for analysis and optimization of Salesforce Flows. Versions 6.10.5 and below allow a maliciously crafted flow metadata file to cause arbitrary JavaScript execution during scanning. The APIVersion rule uses new Function() to evaluate expression strings, enabling an attacker to supply a malicious expression within rule configuration or crafted flow metadata. This could compromise developer machines, CI runners, or editor environments. This issue is fixed in version 6.10.6.

References

• https://github.com/Flow-Scanner/lightning-flow-scanner/security/advisories/GHSA-55jh-84jv-8mx8
• https://github.com/Flow-Scanner/lightning-flow-scanner/commit/10f64a5eb193d8a777e453b25e910144e4540795
• https://github.com/Flow-Scanner/lightning-flow-scanner/releases/tag/core-v6.10.6