X-SpringBoot through 6.0 Authentication Bypass via Static Master Code
X-SpringBoot through 6.0 ships with a hardcoded static master login verification code 172839 enabled by default in the database seed. Unauthenticated attackers can authenticate as any user by submitting the public master code to the emailOrMobileLogin endpoint with a known email or mobile number.
Severity critical: primary CNA CVSS 9.3 v4.0 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2026-09-25T18:12:19.819Z. Updated 2026-09-30T17:29:32.113Z.