Datalust Seq before 4.2.605 is vulnerable to Authentication Bypass (with the attacker obtaining admin access) via '"Name":"isauthenticationenabled","Value":false' in an api/settings/setting-isauthenticationenabled PUT request.
https://github.com/datalust/seq-tickets/issues/675
https://www.exploit-db.com/exploits/45136/
https://medium.com/stolabs/bypass-admin-authentication-on-seq-17f0f9e02732
Source: Mitre, NVD
Published: 2018-03-14
Updated: 2026-06-17
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.5006