{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-92761", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-09-16T19:06:20.513Z", "datePublished": "2026-09-16T20:32:28.410Z", "dateUpdated": "2026-09-16T20:32:28.410Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-16T20:32:28.410Z"}, "datePublic": "2026-06-21T00:00:00.000Z", "title": "WebVirtCloud Missing Authorization on Instance Control Actions", "descriptions": [{"lang": "en", "value": "WebVirtCloud fails to properly validate permission flags in UserInstance grants, allowing view-only users to perform privileged actions. Attackers with read-only grants can power off virtual machines, reset root passwords, install SSH keys, and manage ISO images by exploiting the get_instance gate that only checks grant existence."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Missing Authorization", "cweId": "CWE-862", "type": "CWE"}]}], "affected": [{"vendor": "retspen", "product": "webvirtcloud", "defaultStatus": "unaffected", "versions": [{"version": "1b2da68b2800f94674dd96f4a986cde30ac88280", "status": "affected", "versionType": "git"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH"}}], "references": [{"url": "https://github.com/retspen/webvirtcloud/issues/682", "tags": ["issue-tracking"], "name": "GitHub Issue #682"}, {"url": "https://github.com/retspen/webvirtcloud", "tags": ["product"]}, {"url": "https://github.com/retspen/webvirtcloud/blob/1b2da68b2800f94674dd96f4a986cde30ac88280/instances/views.py#L316-L330", "tags": ["technical-description"], "name": "get_instance checks only that a grant exists, not its flags"}, {"url": "https://github.com/retspen/webvirtcloud/blob/1b2da68b2800f94674dd96f4a986cde30ac88280/instances/views.py#L356-L363", "tags": ["technical-description"], "name": "poweroff authorizes with get_instance alone"}, {"url": "https://github.com/retspen/webvirtcloud/blob/1b2da68b2800f94674dd96f4a986cde30ac88280/instances/views.py#L538-L546", "tags": ["technical-description"], "name": "resizevm_cpu shows the intended is_change enforcement"}, {"name": "VulnCheck Advisory: WebVirtCloud Missing Authorization on Instance Control Actions", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/webvirtcloud-missing-authorization-on-instance-control-actions"}], "credits": [{"lang": "en", "value": "George Chen", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

{}

{}

{}

{}