{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-66171","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","state":"PUBLISHED","assignerShortName":"apache","dateReserved":"2025-11-22T19:26:43.923Z","datePublished":"2026-05-08T12:11:03.883Z","dateUpdated":"2026-05-09T06:42:59.830Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Apache CloudStack","vendor":"Apache Software Foundation","versions":[{"lessThanOrEqual":"4.22.0.0","status":"affected","version":"4.21.0.0","versionType":"custom"}]}],"credits":[{"lang":"en","type":"reporter","value":"Fabricio Duarte <fabricio.duarte.jr@gmail.com>"},{"lang":"en","type":"reporter","value":"Gabriel Ortiga Fernandes <gabriel.ortiga@hotmail.com>"},{"lang":"en","type":"reporter","value":"Gabriel Pordeus Santos <gabrielpordeus@gmail.com>"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"The CloudStack Backup plugin has an improper access logic in versions 4.21.0.0 and 4.22.0.0. Anyone with authenticated user-account access in CloudStack 4.21.0.0+ environments, where this plugin is enabled and have access to specific APIs can create new VMs using backups of any other user of the environment.<br><br>Backup plugin users using CloudStack 4.21.0.0+ are recommended to upgrade to CloudStack version 4.22.0.1, which fixes this issue."}],"value":"The CloudStack Backup plugin has an improper access logic in versions 4.21.0.0 and 4.22.0.0. Anyone with authenticated user-account access in CloudStack 4.21.0.0+ environments, where this plugin is enabled and have access to specific APIs can create new VMs using backups of any other user of the environment.\n\nBackup plugin users using CloudStack 4.21.0.0+ are recommended to upgrade to CloudStack version 4.22.0.1, which fixes this issue."}],"metrics":[{"other":{"content":{"text":"important"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-359","description":"CWE-359 Exposure of Private Personal Information to an Unauthorized Actor","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","shortName":"apache","dateUpdated":"2026-05-08T12:11:03.883Z"},"references":[{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/n8mt5b7wkpysstb8w7rr9f02kc5cq2xm"}],"source":{"discovery":"INTERNAL"},"title":"Apache CloudStack: Any user can create a new VM from backups they should not have access to","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.5,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-05-08T17:55:40.846619Z","id":"CVE-2025-66171","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-08T17:55:45.706Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/05/09/2"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-05-09T06:42:59.830Z"}}]}}