KeystoneJS before 4.0.0-beta.7 allows application-wide CSRF bypass by removing the CSRF parameter and value, aka SecureLayer7 issue number SL7_KEYJS_03. In other words, it fails to reject requests that lack an x-csrf-token header.
https://github.com/keystonejs/keystone/pull/4478
https://github.com/keystonejs/keystone/issues/4437
http://blog.securelayer7.net/keystonejs-open-source-penetration-testing-report/
https://www.exploit-db.com/exploits/43922/
Source: Mitre, NVD
Published: 2017-11-06
Updated: 2026-06-17
Base Score: 6.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.00209