{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-121557", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-03T14:46:16.996Z", "datePublished": "2026-11-03T15:17:14.257Z", "dateUpdated": "2026-11-03T15:17:14.257Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-03T15:17:14.257Z"}, "datePublic": "2026-11-02T00:00:00.000Z", "title": "WPPConnect Server through 2.10.74 Missing Authentication via /api/:session/chatwoot", "descriptions": [{"lang": "en", "value": "WPPConnect Server through 2.10.74 contains a missing authentication vulnerability that allows unauthenticated attackers to send WhatsApp messages by calling the Chatwoot webhook route without verifyToken middleware. Attackers who know or guess a connected session name can POST outgoing message bodies to send arbitrary texts or files from that account to any number."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Missing Authentication for Critical Function", "cweId": "CWE-306", "type": "CWE"}]}], "affected": [{"vendor": "wppconnect", "product": "wppconnect-server", "defaultStatus": "unaffected", "packageURL": "pkg:npm/%40wppconnect/server", "versions": [{"version": "0", "lessThanOrEqual": "2.10.74", "versionType": "semver", "status": "affected"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/wppconnect-team/wppconnect-server/issues/2701", "tags": ["issue-tracking"], "name": "GitHub Issue #2701"}, {"url": "https://github.com/wppconnect-team/wppconnect-server", "tags": ["product"]}, {"url": "https://github.com/wppconnect-team/wppconnect-server/pull/2702", "tags": ["patch", "issue-tracking"], "name": "Fix commit"}, {"url": "https://github.com/wppconnect-team/wppconnect-server/blob/v2.10.74/src/routes/index.ts#L963", "tags": ["technical-description"]}, {"url": "https://github.com/wppconnect-team/wppconnect-server/blob/v2.10.74/src/controller/deviceController.ts#L2230-L2324", "tags": ["technical-description"]}, {"name": "VulnCheck Advisory: WPPConnect Server through 2.10.74 Missing Authentication via /api/:session/chatwoot", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/wppconnect-server-through-2.10.74-missing-authentication-via-api-session-chatwoot"}], "credits": [{"lang": "en", "value": "hieuPenguinnn", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:npm/%40wppconnect/server", "product": "wppconnect-server", "vendor": "wppconnect", "versions": [{"lessThanOrEqual": "2.10.74", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "WPPConnect Server through 2.10.74 contains a missing authentication vulnerability that allows unauthenticated attackers to send WhatsApp messages by calling the Chatwoot webhook route without verifyToken middleware. Attackers who know or guess a connected session name can POST outgoing message bodies to send arbitrary texts or files from that account to any number."}], "id": "CVE-2026-121557", "lastModified": "2026-11-03T16:30:49.290", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N/E:X/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-11-03T16:17:28.163", "references": [{"source": "[email protected]", "url": "https://github.com/wppconnect-team/wppconnect-server"}, {"source": "[email protected]", "url": "https://github.com/wppconnect-team/wppconnect-server/blob/v2.10.74/src/controller/deviceController.ts#L2230-L2324"}, {"source": "[email protected]", "url": "https://github.com/wppconnect-team/wppconnect-server/blob/v2.10.74/src/routes/index.ts#L963"}, {"source": "[email protected]", "url": "https://github.com/wppconnect-team/wppconnect-server/issues/2701"}, {"source": "[email protected]", "url": "https://github.com/wppconnect-team/wppconnect-server/pull/2702"}, {"source": "[email protected]", "url": "https://www.vulncheck.com/advisories/wppconnect-server-through-2.10.74-missing-authentication-via-api-session-chatwoot"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "[email protected]", "type": "Primary"}]}

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