CVE-2021-37630

{"containers": {"cna": {"affected": [{"product": "security-advisories", "vendor": "nextcloud", "versions": [{"status": "affected", "version": "< 0.19.15"}, {"status": "affected", "version": ">= 0.20.0, < 0.20.11"}, {"status": "affected", "version": ">= 0.21.0, < 0.21.4"}]}], "descriptions": [{"lang": "en", "value": "Nextcloud Circles is an open source social network built for the nextcloud ecosystem. In affected versions the Nextcloud Circles application allowed any user to join any \"Secret Circle\" without approval by the Circle owner leaking private information. It is recommended that Nextcloud Circles is upgraded to 0.19.15, 0.20.11 or 0.21.4. There are no workarounds for this issue."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-639", "description": "CWE-639: Authorization Bypass Through User-Controlled Key", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-09-07T20:00:12.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/nextcloud/circles/pull/768"}, {"tags": ["x_refsource_MISC"], "url": "https://hackerone.com/reports/1257624"}], "source": {"advisory": "GHSA-56j9-3rj4-wvgm", "discovery": "UNKNOWN"}, "title": "Secret Circle can be joined without approval in Nextcloud Circles", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-37630", "STATE": "PUBLIC", "TITLE": "Secret Circle can be joined without approval in Nextcloud Circles"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "security-advisories", "version": {"version_data": [{"version_value": "< 0.19.15"}, {"version_value": ">= 0.20.0, < 0.20.11"}, {"version_value": ">= 0.21.0, < 0.21.4"}]}}]}, "vendor_name": "nextcloud"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Nextcloud Circles is an open source social network built for the nextcloud ecosystem. In affected versions the Nextcloud Circles application allowed any user to join any \"Secret Circle\" without approval by the Circle owner leaking private information. It is recommended that Nextcloud Circles is upgraded to 0.19.15, 0.20.11 or 0.21.4. There are no workarounds for this issue."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-639: Authorization Bypass Through User-Controlled Key"}]}]}, "references": {"reference_data": [{"name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm", "refsource": "CONFIRM", "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm"}, {"name": "https://github.com/nextcloud/circles/pull/768", "refsource": "MISC", "url": "https://github.com/nextcloud/circles/pull/768"}, {"name": "https://hackerone.com/reports/1257624", "refsource": "MISC", "url": "https://hackerone.com/reports/1257624"}]}, "source": {"advisory": "GHSA-56j9-3rj4-wvgm", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T01:23:01.297Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/nextcloud/circles/pull/768"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://hackerone.com/reports/1257624"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-37630", "datePublished": "2021-09-07T20:00:12.000Z", "dateReserved": "2021-07-29T00:00:00.000Z", "dateUpdated": "2024-08-04T01:23:01.297Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "security-advisories", "vendor": "nextcloud", "versions": [{"status": "affected", "version": "< 0.19.15"}, {"status": "affected", "version": ">= 0.20.0, < 0.20.11"}, {"status": "affected", "version": ">= 0.21.0, < 0.21.4"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:nextcloud:circles:*:*:*:*:*:*:*:*", "matchCriteriaId": "CB51D431-2C3E-4B2F-B366-7C8747A11166", "versionEndExcluding": "0.19.5", "vulnerable": true}, {"criteria": "cpe:2.3:a:nextcloud:circles:*:*:*:*:*:*:*:*", "matchCriteriaId": "CD21234A-B874-4D25-9700-51436B5376F0", "versionEndExcluding": "0.20.11", "versionStartIncluding": "0.20.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:nextcloud:circles:*:*:*:*:*:*:*:*", "matchCriteriaId": "E781B7FC-7237-47E6-8129-C57F0CAFBF44", "versionEndExcluding": "0.21.4", "versionStartIncluding": "0.21.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Nextcloud Circles is an open source social network built for the nextcloud ecosystem. In affected versions the Nextcloud Circles application allowed any user to join any \"Secret Circle\" without approval by the Circle owner leaking private information. It is recommended that Nextcloud Circles is upgraded to 0.19.15, 0.20.11 or 0.21.4. There are no workarounds for this issue."}, {"lang": "es", "value": "Nextcloud Circles es una red social de c\u00f3digo abierto construida para el ecosistema nextcloud. En las versiones afectadas la aplicaci\u00f3n Nextcloud Circles permit\u00eda a cualquier usuario unirse a cualquier \"Secret Circle\" sin la aprobaci\u00f3n del propietario del C\u00edrculo, filtrando informaci\u00f3n privada. Es recomendado actualizar Nextcloud Circles a versiones 0.19.15, 0.20.11 o 0.21.4. No se presentan soluciones para este problema"}], "id": "CVE-2021-37630", "lastModified": "2026-06-17T04:00:51.920", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 4.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "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": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-09-07T20:15:07.847", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/nextcloud/circles/pull/768"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm"}, {"source": "security-advisories@github.com", "tags": ["Permissions Required", "Third Party Advisory"], "url": "https://hackerone.com/reports/1257624"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/nextcloud/circles/pull/768"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Permissions Required", "Third Party Advisory"], "url": "https://hackerone.com/reports/1257624"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-639"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-639"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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