{"id":"CVE-2026-113610","published":"2026-10-20T16:17:11.480","lastModified":"2026-10-20T20:11:29.833","description":"Xen Orchestra before 6.9.0 contains an authorization bypass vulnerability in the xo-server user.set API method that allows low-privileged authenticated users to modify other users' preferences by supplying an arbitrary target user id. Attackers can delete the preferences.otp TOTP secret to disable two-factor authentication, corrupt it to block logins, or overwrite stored xsCredentials and sshKeys.","cvssScore":5.4,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","cwes":["CWE-639"],"vendors":[],"products":[],"references":[{"url":"https://github.com/vatesfr/xen-orchestra/blob/f187b7931988e3e5c9ccd58abe730d6b006cc246/packages/xo-server/src/api/user.mjs#L73-L93","tags":[]},{"url":"https://github.com/vatesfr/xen-orchestra/commit/3dbf8738f1e682b96ade2074dc84bee02a0c2d48","tags":[]},{"url":"https://github.com/vatesfr/xen-orchestra/security/advisories/GHSA-mc4m-hc98-rhmv","tags":[]},{"url":"https://www.vulncheck.com/advisories/xen-orchestra-before-6.9.0-authorization-bypass-via-user-set-api","tags":[]}],"exploitRefs":[{"url":"https://github.com/vatesfr/xen-orchestra/blob/f187b7931988e3e5c9ccd58abe730d6b006cc246/packages/xo-server/src/api/user.mjs#L73-L93","tags":[]},{"url":"https://github.com/vatesfr/xen-orchestra/commit/3dbf8738f1e682b96ade2074dc84bee02a0c2d48","tags":[]},{"url":"https://github.com/vatesfr/xen-orchestra/security/advisories/GHSA-mc4m-hc98-rhmv","tags":[]}],"hasPoc":true,"ai":null}