{"id":"CVE-2021-22877","state":"PUBLISHED","title":"A missing user check in Nextcloud prior to 20.0.6 inadvertently populates a user's own credentials for other users external storage configuration when not already configured yet.","description":"A missing user check in Nextcloud prior to 20.0.6 inadvertently populates a user's own credentials for other users external storage configuration when not already configured yet.","publishedAt":"2021-03-03T17:39:15.000Z","updatedAt":"2024-08-03T18:51:07.530Z","severity":null,"assigner":"hackerone","products":["n/a Nextcloud Server"],"affected":[{"vendor":"n/a","product":"Nextcloud Server","versions":[{"version":"Fixed in 20.0.6","status":"affected"}]}],"references":["https://hackerone.com/reports/1061591","https://nextcloud.com/security/advisory/?id=NC-SA-2021-004","https://github.com/nextcloud/server/issues/24600","https://github.com/nextcloud/server/pull/25224","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/"],"weaknesses":["CWE-284"],"ingestedAt":"2026-10-29T19:48:02.192Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/22xxx/CVE-2021-22877.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-22877","state":"PUBLISHED","datePublished":"2021-03-03T17:39:15.000Z","dateUpdated":"2024-08-03T18:51:07.530Z","assignerShortName":"hackerone","assignerOrgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","dateReserved":"2021-01-06T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A missing user check in Nextcloud prior to 20.0.6 inadvertently populates a user's own credentials for other users external storage configuration when not already configured yet."}],"affected":[{"vendor":"n/a","product":"Nextcloud Server","versions":[{"version":"Fixed in 20.0.6","status":"affected"}]}],"references":[{"url":"https://hackerone.com/reports/1061591","tags":["x_refsource_MISC"]},{"url":"https://nextcloud.com/security/advisory/?id=NC-SA-2021-004","tags":["x_refsource_MISC"]},{"url":"https://github.com/nextcloud/server/issues/24600","tags":["x_refsource_MISC"]},{"url":"https://github.com/nextcloud/server/pull/25224","tags":["x_refsource_MISC"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/","name":"FEDORA-2021-eac0e52f88","tags":["vendor-advisory","x_refsource_FEDORA"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","description":"Improper Access Control - Generic (CWE-284)","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"hackerone","dateUpdated":"2021-07-09T08:08:32.000Z","orgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"support@hackerone.com","ID":"CVE-2021-22877","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Nextcloud Server","version":{"version_data":[{"version_value":"Fixed in 20.0.6"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"A missing user check in Nextcloud prior to 20.0.6 inadvertently populates a user's own credentials for other users external storage configuration when not already configured yet."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Improper Access Control - Generic (CWE-284)"}]}]},"references":{"reference_data":[{"name":"https://hackerone.com/reports/1061591","refsource":"MISC","url":"https://hackerone.com/reports/1061591"},{"name":"https://nextcloud.com/security/advisory/?id=NC-SA-2021-004","refsource":"MISC","url":"https://nextcloud.com/security/advisory/?id=NC-SA-2021-004"},{"name":"https://github.com/nextcloud/server/issues/24600","refsource":"MISC","url":"https://github.com/nextcloud/server/issues/24600"},{"name":"https://github.com/nextcloud/server/pull/25224","refsource":"MISC","url":"https://github.com/nextcloud/server/pull/25224"},{"name":"FEDORA-2021-eac0e52f88","refsource":"FEDORA","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://hackerone.com/reports/1061591","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nextcloud.com/security/advisory/?id=NC-SA-2021-004","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://github.com/nextcloud/server/issues/24600","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://github.com/nextcloud/server/pull/25224","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/","name":"FEDORA-2021-eac0e52f88","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T18:51:07.530Z"}}]}}}