Vulnerability · Published Sep 25, 2026 · Assigned by VulnCheck
CVE-2026-97064X-SpringBoot through 6.0 Authentication Bypass via Static Master Code
Critical 9.1
In plain English
A critical-severity security flaw in X-SpringBoot from yzcheng90. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.3%top 76.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| yzcheng90 | X-SpringBoot | 0 – through 6.0 |
Weakness: CWE-1392 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
References
- Proof of concept exploit
- Default master code in seed data technical-description
- Vulnerable code technical-description
- https://github.com/yzcheng90/X-SpringBoot product
- VulnCheck Advisory: X-SpringBoot through 6.0 Authentication Bypass via Static Master Code third-party-advisory