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.
Severity
CVSS 3.0
8.8 high
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
2.2% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)