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

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

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.

Source published

12 Dec 2025 20:14:21 UTC

Source modified

12 Dec 2025 20:50:57 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

CVE Program Terms of Use

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CVSS 3.1 · 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Source published

Dec 12, 2025, 8:14:21 PM (timezone not stated)

Source modified

Dec 12, 2025, 8:50:57 PM (timezone not stated)

Observed here

9 Nov 2026 06:02:55 UTC

Source terms

ENISA EUVD · source terms and attribution apply

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Source published

12 Dec 2025 21:15:59 UTC

Source modified

14 Oct 2026 13:10:00 UTC

Observed here

25 Oct 2026 04:17:10 UTC

Source terms

NIST NVD usage terms; underlying source attribution retained

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

### Impact The APIVersion rule uses `new Function()` to evaluate expression strings. A malicious crafted flow metadata file can cause arbitrary JavaScript execution during scanning. An attacker could execute arbitrary JavaScript during a scan by supplying a malicious expression within rule configuration or crafted flow metadata. This could compromise developer machines, CI runners, or editor environments. ### Patches The patch removes all uses of `new Function()` and replaces them with a safer parser. It now validates operators (`>`, >=`, `<`, `<=`, `==`) and performs numeric comparisons without evaluating untrusted JavaScript. **version:** core-v6.10.6, **version vsx:**: v2.4.4 **version app:**: v3.1.0 ### Work around ``` // --- Handle APIVersion rule separately to avoid unsafe-eval in the core library --- const apiVersionConfig = ruleConfig.rules.APIVersion; if (apiVersionConfig) { delete ruleConfig.rules.APIVersion; } // Manually evaluate the APIVersion rule, if it was configured. if (apiVersionConfig) { const flowApiVer = this.currentFlow.apiVersion || this.currentFlow.xmlData?.apiVersion; const apiVersionRuleDef = allRules.find(r => r.name === "APIVersion"); // Determine the required expression (e.g. ">=58"). let requiredExpr; if (apiVersionConfig.expression) { requiredExpr = apiVersionConfig.expression; } else if (apiVersionConfig.threshold != null) { requiredExpr = `>=${apiVersionConfig.threshold}`; } if (requiredExpr) { const minVer = parseInt(requiredExpr.replace(/[^0-9]/g, ""), 10); const operator = requiredExpr.replace(/[0-9]/g, "").trim(); const operators = { ">=": (a, b) => a < b, "<": (a, b) => a >= b, ">": (a, b) => a <= b, "<=": (a, b) => a > b, "==": (a, b) => a !== b, "=": (a, b) => a !== b }; const violation = operators[operator] ? operators[operator](flowApiVer, minVer) : flowApiVer < minVer; if (violation) { // Craft a result object that mimics the core scanner output so downstream logic remains unchanged. const manualScanResult = [{ flow: parsedFlow, ruleResults: [{ ruleName: "APIVersion", ruleDefinition: { description: apiVersionRuleDef?.description || "API Version check", label: apiVersionRuleDef?.label || "APIVersion" }, occurs: true, severity: apiVersionConfig.severity, details: [{ name: String(flowApiVer), type: "apiVersion", expression: requiredExpr }] }] }]; results.push(...this.processScanResults(manualScanResult)); } } } ```

Source published

12 Dec 2025 20:20:34 UTC

Source modified

20 Dec 2025 05:07:45 UTC

Observed here

24 Oct 2026 13:17:17 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Publisher rating · HIGH