{"api_version":"1","generated_at":"2026-07-23T12:09:34+00:00","cve":"CVE-2023-39963","urls":{"html":"https://cve.report/CVE-2023-39963","api":"https://cve.report/api/cve/CVE-2023-39963.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-39963","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-39963"},"summary":{"title":"CVE-2023-39963","description":"Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 20.0.0 and prior to versions 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, a missing password confirmation allowed an attacker, after successfully stealing a session from a logged in user, to create app passwords for the victim. Nextcloud server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.9, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available.","state":"PUBLIC","assigner":"security-advisories@github.com","published_at":"2023-08-10 18:15:00","updated_at":"2023-08-16 13:39:00"},"problem_types":["NVD-CWE-noinfo"],"metrics":[],"references":[{"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-j4qm-5q5x-54m5","name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-j4qm-5q5x-54m5","refsource":"MISC","tags":[],"title":"Missing password confirmation when creating app passwords · Advisory · nextcloud/security-advisories · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://hackerone.com/reports/2067572","name":"https://hackerone.com/reports/2067572","refsource":"MISC","tags":[],"title":"HackerOne","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/nextcloud/server/pull/39416","name":"https://github.com/nextcloud/server/pull/39416","refsource":"MISC","tags":[],"title":"fix(core): Add password confirmation requirement for getapppassword by nickvergessen · Pull Request #39416 · nextcloud/server · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-39963","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-39963","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2023","cve_id":"39963","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"nextcloud","cpe5":"nextcloud_server","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"-","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"39963","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"nextcloud","cpe5":"nextcloud_server","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"enterprise","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"39963","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"nextcloud","cpe5":"nextcloud_server","cpe6":"27.0.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"-","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"39963","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"nextcloud","cpe5":"nextcloud_server","cpe6":"27.0.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"enterprise","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2023-39963","ASSIGNER":"security-advisories@github.com","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 20.0.0 and prior to versions 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, a missing password confirmation allowed an attacker, after successfully stealing a session from a logged in user, to create app passwords for the victim. Nextcloud server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.9, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-284: Improper Access Control","cweId":"CWE-284"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"nextcloud","product":{"product_data":[{"product_name":"security-advisories","version":{"version_data":[{"version_affected":"=","version_value":">= 20.0.0, < 20.0.14.15"},{"version_affected":"=","version_value":">= 21.0.0, < 21.0.9.13"},{"version_affected":"=","version_value":">= 22.0.0, < 22.2.10.14"},{"version_affected":"=","version_value":">= 23.0.0, < 23.0.12.9"},{"version_affected":"=","version_value":">= 24.0.0, < 24.0.12.5"},{"version_affected":"=","version_value":">= 25.0.0, < 25.0.9"},{"version_affected":"=","version_value":">= 26.0.0, < 26.0.4"},{"version_affected":"=","version_value":">= 27.0.0, < 27.0.1"}]}}]}}]}},"references":{"reference_data":[{"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-j4qm-5q5x-54m5","refsource":"MISC","name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-j4qm-5q5x-54m5"},{"url":"https://github.com/nextcloud/server/pull/39416","refsource":"MISC","name":"https://github.com/nextcloud/server/pull/39416"},{"url":"https://hackerone.com/reports/2067572","refsource":"MISC","name":"https://hackerone.com/reports/2067572"}]},"source":{"advisory":"GHSA-j4qm-5q5x-54m5","discovery":"UNKNOWN"},"impact":{"cvss":[{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L","version":"3.1"}]}},"nvd":{"publishedDate":"2023-08-10 18:15:00","lastModifiedDate":"2023-08-16 13:39:00","problem_types":["NVD-CWE-noinfo"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nextcloud:nextcloud_server:27.0.0:*:*:*:-:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*","versionStartIncluding":"26.0.0","versionEndExcluding":"26.0.4","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*","versionStartIncluding":"25.0.0","versionEndExcluding":"25.0.9","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nextcloud:nextcloud_server:27.0.0:*:*:*:enterprise:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*","versionStartIncluding":"22.0.0","versionEndExcluding":"22.2.10.14","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*","versionStartIncluding":"23.0.0","versionEndExcluding":"23.0.12.9","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*","versionStartIncluding":"24.0.0","versionEndExcluding":"24.0.12.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*","versionStartIncluding":"25.0.0","versionEndExcluding":"25.0.9","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*","versionStartIncluding":"26.0.0","versionEndExcluding":"26.0.4","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*","versionStartIncluding":"21.0.0","versionEndExcluding":"21.0.9.13","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*","versionStartIncluding":"20.0.0","versionEndExcluding":"20.0.14.15","cpe_name":[]}]}]}},"legacy_mitre":{"record":null,"notes":[]}}}