CVE-2021-23430

Directory Traversal

View on CVE.org

Published Aug 24, 2021 CVSS 3.1 · 7.5 High EPSS 1.8% KEV · Not listed

Description

All versions of package startserver are vulnerable to Directory Traversal due to missing sanitization.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

startserver

affected

Version	Status	Constraints
`0`	affected	< unspecified

Configuration 1 [-]

cpe:2.3:a:startserver_project:startserver:*:*:*:*:*:node.js:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-2077	All versions of package startserver are vulnerable to Directory Traversal due to missing sanitization.
Github GHSA	GHSA-hqv3-qq72-78cv	Directory Traversal in startserver

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: 1.8% (1.779% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/xudafeng/startserver/blob/bef0c4e4d21da42a40ce87cf25fd54ac8d8cb2d8/lib/index.js%23L71
https://snyk.io/vuln/SNYK-JS-STARTSERVER-1296388

History

No history.

Subscriptions

Startserver Project Startserver

Weaknesses

CWE-22

Sources

CVE record Updated: Sep 17, 2024, 1:31 AM

Status: PUBLISHED
Assigner: snyk
Published: Aug 24, 2021, 7:45 AM
Updated: Sep 17, 2024, 1:31 AM
Reserved: Jan 8, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:38 AM

Status: Modified
Published: Aug 24, 2021, 8:15 AM
Modified: Jun 17, 2026, 3:38 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"containers": {"cna": {"affected": [{"product": "startserver", "vendor": "n/a", "versions": [{"lessThan": "unspecified", "status": "affected", "version": "0", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "An Thien Nguyen"}], "datePublic": "2021-08-24T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "All versions of package startserver are vulnerable to Directory Traversal due to missing sanitization."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "exploitCodeMaturity": "PROOF_OF_CONCEPT", "integrityImpact": "NONE", "privilegesRequired": "NONE", "remediationLevel": "NOT_DEFINED", "reportConfidence": "NOT_DEFINED", "scope": "UNCHANGED", "temporalScore": 7.1, "temporalSeverity": "HIGH", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"description": "Directory Traversal", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-08-24T07:45:24.000Z", "orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "shortName": "snyk"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://snyk.io/vuln/SNYK-JS-STARTSERVER-1296388"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/xudafeng/startserver/blob/bef0c4e4d21da42a40ce87cf25fd54ac8d8cb2d8/lib/index.js%23L71"}], "title": "Directory Traversal", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "report@snyk.io", "DATE_PUBLIC": "2021-08-24T07:41:51.425177Z", "ID": "CVE-2021-23430", "STATE": "PUBLIC", "TITLE": "Directory Traversal"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "startserver", "version": {"version_data": [{"version_affected": ">=", "version_value": "0"}]}}]}, "vendor_name": "n/a"}]}}, "credit": [{"lang": "eng", "value": "An Thien Nguyen"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "All versions of package startserver are vulnerable to Directory Traversal due to missing sanitization."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Directory Traversal"}]}]}, "references": {"reference_data": [{"name": "https://snyk.io/vuln/SNYK-JS-STARTSERVER-1296388", "refsource": "MISC", "url": "https://snyk.io/vuln/SNYK-JS-STARTSERVER-1296388"}, {"name": "https://github.com/xudafeng/startserver/blob/bef0c4e4d21da42a40ce87cf25fd54ac8d8cb2d8/lib/index.js%23L71", "refsource": "MISC", "url": "https://github.com/xudafeng/startserver/blob/bef0c4e4d21da42a40ce87cf25fd54ac8d8cb2d8/lib/index.js%23L71"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T19:05:55.827Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://snyk.io/vuln/SNYK-JS-STARTSERVER-1296388"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/xudafeng/startserver/blob/bef0c4e4d21da42a40ce87cf25fd54ac8d8cb2d8/lib/index.js%23L71"}]}]}, "cveMetadata": {"assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "assignerShortName": "snyk", "cveId": "CVE-2021-23430", "datePublished": "2021-08-24T07:45:24.211Z", "dateReserved": "2021-01-08T00:00:00.000Z", "dateUpdated": "2024-09-17T01:31:45.294Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "startserver", "vendor": "n/a", "versions": [{"lessThan": "unspecified", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "report@snyk.io"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:startserver_project:startserver:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "21CBEC2A-BBB6-4092-8C7A-E05B61ACA6F4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "All versions of package startserver are vulnerable to Directory Traversal due to missing sanitization."}, {"lang": "es", "value": "Todas las versiones del paquete startserver son vulnerables a un Salto de Directorio debido a una falta de saneo."}], "id": "CVE-2021-23430", "lastModified": "2026-06-17T03:38:44.943", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "report@snyk.io", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-08-24T08:15:22.100", "references": [{"source": "report@snyk.io", "tags": ["Broken Link"], "url": "https://github.com/xudafeng/startserver/blob/bef0c4e4d21da42a40ce87cf25fd54ac8d8cb2d8/lib/index.js%23L71"}, {"source": "report@snyk.io", "tags": ["Exploit", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-JS-STARTSERVER-1296388"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "https://github.com/xudafeng/startserver/blob/bef0c4e4d21da42a40ce87cf25fd54ac8d8cb2d8/lib/index.js%23L71"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-JS-STARTSERVER-1296388"}], "sourceIdentifier": "report@snyk.io", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "nvd@nist.gov", "type": "Primary"}]}