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.
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References
History
Wed, 16 Sep 2026 20:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | WebVirtCloud Missing Authorization on Instance Control Actions | |
| Weaknesses | CWE-862 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-16T20:32:28.410Z
Reserved: 2026-09-16T19:06:20.513Z
Link: CVE-2026-92761
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Status : Received
Published: 2026-09-16T21:17:24.780
Modified: 2026-09-16T21:17:24.780
Link: CVE-2026-92761
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OpenCVE Enrichment
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Weaknesses