CVE-2026-92761
גבוהה 8.8
תיאור (מקור, אנגלית)
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.
מדדים
- CVSS 3.1
-
8.8 (HIGH)
מקור הציון: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
8.7 (HIGH)
מקור הציון: CNA
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — סבירות ניצול
- 0% (אחוזון 000) נכון ל-17/9/2026
- CWE
- CWE-862
קישורים
- https://github.com/retspen/webvirtcloud
- https://github.com/retspen/webvirtcloud/blob/1b2da68b2800f94674dd96f4a986cde30…
- https://github.com/retspen/webvirtcloud/blob/1b2da68b2800f94674dd96f4a986cde30…
- https://github.com/retspen/webvirtcloud/blob/1b2da68b2800f94674dd96f4a986cde30…
- https://github.com/retspen/webvirtcloud/issues/682
- https://www.vulncheck.com/advisories/webvirtcloud-missing-authorization-on-ins…