CVE-2020-7707

Prototype Pollution

View on CVE.org

Published Aug 18, 2020 CVSS 3.1 · 9.8 Critical EPSS 3.4% KEV · Not listed

Description

The package property-expr before 2.0.3 are vulnerable to Prototype Pollution via the setter function.

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

property-expr

affected

Version	Status	Constraints
`unspecified`	affected	< 2.0.3

Configuration 1 [-]

cpe:2.3:a:property-expr_project:property-expr:*:*:*:*:*: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-2021-0969	The package property-expr before 2.0.3 are vulnerable to Prototype Pollution via the setter function.
Github GHSA	GHSA-6fw4-hr69-g3rv	Prototype Pollution in property-expr

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 3.4% (3.376% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/jquense/expr/commit/df846910915d59f711ce63c1f817815bceab5ff7
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-598857
https://snyk.io/vuln/SNYK-JS-PROPERTYEXPR-598800

History

No history.

Subscriptions

Property-expr Project Property-expr

Weaknesses

CWE-1321

Sources

CVE record Updated: Sep 16, 2024, 10:08 PM

Status: PUBLISHED
Assigner: snyk
Published: Aug 18, 2020, 1:40 PM
Updated: Sep 16, 2024, 10:08 PM
Reserved: Jan 21, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:25 AM

Status: Modified
Published: Aug 18, 2020, 2:15 PM
Modified: Jun 17, 2026, 3:25 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"containers": {"cna": {"affected": [{"product": "property-expr", "vendor": "n/a", "versions": [{"lessThan": "2.0.3", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "NerdJS"}], "datePublic": "2020-08-18T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "The package property-expr before 2.0.3 are vulnerable to Prototype Pollution via the setter function."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "exploitCodeMaturity": "PROOF_OF_CONCEPT", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "remediationLevel": "UNAVAILABLE", "reportConfidence": "CONFIRMED", "scope": "UNCHANGED", "temporalScore": 9.3, "temporalSeverity": "CRITICAL", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"description": "Prototype Pollution", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-08-18T13:40:12.000Z", "orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "shortName": "snyk"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://snyk.io/vuln/SNYK-JS-PROPERTYEXPR-598800"}, {"tags": ["x_refsource_MISC"], "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-598857"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/jquense/expr/commit/df846910915d59f711ce63c1f817815bceab5ff7"}], "title": "Prototype Pollution", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "report@snyk.io", "DATE_PUBLIC": "2020-08-18T13:38:04.418000Z", "ID": "CVE-2020-7707", "STATE": "PUBLIC", "TITLE": "Prototype Pollution"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "property-expr", "version": {"version_data": [{"version_affected": "<", "version_value": "2.0.3"}]}}]}, "vendor_name": "n/a"}]}}, "credit": [{"lang": "eng", "value": "NerdJS"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The package property-expr before 2.0.3 are vulnerable to Prototype Pollution via the setter function."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Prototype Pollution"}]}]}, "references": {"reference_data": [{"name": "https://snyk.io/vuln/SNYK-JS-PROPERTYEXPR-598800", "refsource": "MISC", "url": "https://snyk.io/vuln/SNYK-JS-PROPERTYEXPR-598800"}, {"name": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-598857", "refsource": "MISC", "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-598857"}, {"name": "https://github.com/jquense/expr/commit/df846910915d59f711ce63c1f817815bceab5ff7", "refsource": "MISC", "url": "https://github.com/jquense/expr/commit/df846910915d59f711ce63c1f817815bceab5ff7"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T09:41:01.575Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://snyk.io/vuln/SNYK-JS-PROPERTYEXPR-598800"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-598857"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/jquense/expr/commit/df846910915d59f711ce63c1f817815bceab5ff7"}]}]}, "cveMetadata": {"assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "assignerShortName": "snyk", "cveId": "CVE-2020-7707", "datePublished": "2020-08-18T13:40:12.220Z", "dateReserved": "2020-01-21T00:00:00.000Z", "dateUpdated": "2024-09-16T22:08:43.138Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "property-expr", "vendor": "n/a", "versions": [{"lessThan": "2.0.3", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "report@snyk.io"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:property-expr_project:property-expr:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "679DD9FB-37A9-4BD4-B36F-43D8F001CE9B", "versionEndExcluding": "2.0.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The package property-expr before 2.0.3 are vulnerable to Prototype Pollution via the setter function."}, {"lang": "es", "value": "El paquete property-expr versiones anteriores a 2.0.3, es vulnerable a la Contaminaci\u00f3n de Prototipo por medio de la funci\u00f3n setter."}], "id": "CVE-2020-7707", "lastModified": "2026-06-17T03:25:18.140", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "report@snyk.io", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-08-18T14:15:13.793", "references": [{"source": "report@snyk.io", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/jquense/expr/commit/df846910915d59f711ce63c1f817815bceab5ff7"}, {"source": "report@snyk.io", "tags": ["Exploit", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-598857"}, {"source": "report@snyk.io", "tags": ["Exploit", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-JS-PROPERTYEXPR-598800"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/jquense/expr/commit/df846910915d59f711ce63c1f817815bceab5ff7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-598857"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-JS-PROPERTYEXPR-598800"}], "sourceIdentifier": "report@snyk.io", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1321"}], "source": "nvd@nist.gov", "type": "Primary"}]}