{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-9611", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2025-08-28T15:34:36.069Z", "datePublished": "2026-01-07T04:24:13.705Z", "dateUpdated": "2026-07-14T22:26:10.828Z" }, "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "packageURL": "pkg:github/microsoft/playwright", "product": "Playwright", "repo": "https://github.com/microsoft/playwright", "vendor": "Microsoft", "versions": [ { "lessThan": "0.0.40", "status": "affected", "version": "0", "versionType": "semver" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:playwright:*:*:*:*:*:*:*:*", "versionEndExcluding": "0.0.40" } ] } ] } ], "credits": [ { "lang": "en", "type": "finder", "value": "Jonathan Leitschuh" } ], "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "Microsoft Playwright MCP Server versions prior to 0.0.40 fails to validate the Origin header on incoming connections. This allows an attacker to perform a DNS rebinding attack via a victim’s web browser and send unauthorized requests to a locally running MCP server, resulting in unintended invocation of MCP tool endpoints." } ], "value": "Microsoft Playwright MCP Server versions prior to 0.0.40 fails to validate the Origin header on incoming connections. This allows an attacker to perform a DNS rebinding attack via a victim’s web browser and send unauthorized requests to a locally running MCP server, resulting in unintended invocation of MCP tool endpoints." } ], "metrics": [ { "cvssV4_0": { "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 7.2, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:L/SI:L/SA:L", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-749", "description": "CWE-749 Exposed Dangerous Method or Function", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-07-14T22:26:10.828Z" }, "references": [ { "tags": [ "vendor-advisory" ], "url": "https://github.com/JLLeitschuh/security-research/security/advisories/GHSA-8rgw-6xp9-2fg3" }, { "tags": [ "patch" ], "url": "https://github.com/microsoft/playwright/commit/1313fbd" }, { "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/microsoft-playwright-mcp-server-dns-rebinding-via-missing-origin-header-validation" } ], "source": { "discovery": "UNKNOWN" }, "title": "Microsoft Playwright MCP Server < 0.0.40 DNS Rebinding via Missing Origin Header Validation", "x_generator": { "engine": "Vulnogram 0.5.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-01-07T14:24:21.005462Z", "id": "CVE-2025-9611", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-07T14:25:19.390Z" } } ] } }