CVSS 3.1
4.3 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NCVE-2021-36383
Medium (4.3) in xen-orchestra. EPSS 0.7% chance of exploitation in the next 30 days.
Xen Orchestra (with xo-web through 5.80.0 and xo-server through 5.84.0) mishandles authorization, as demonstrated by modified WebSocket resourceSet.getAll data is which the attacker changes the permission field from none to admin. The attacker gains access to data sets such as VMs, Backups, Audit, Users, and Groups.
Severity
- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- xen-orchestra:xo-server
- xen-orchestra:xo-web
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-grvm-gcqf-gh8q | npm | xo-web | <=5.80.0 | no fix published |
| GHSA-grvm-gcqf-gh8q | npm | xo-server | <=5.84.0 | no fix published |