Authentication Bypass in X-SpringBoot Due to Hardcoded Static Master Code
CVE-2026-97064

9.3CRITICAL

Key Information:

Vendor

Yzcheng90

Status
X-springboot
Vendor
CVE Published:
25 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-97064?

X-SpringBoot versions up to 6.0 include a hardcoded static master login verification code (172839) that is enabled by default in the database seed. This vulnerability enables unauthenticated attackers to authenticate as any user by simply providing the public master code along with a known email or mobile number via the emailOrMobileLogin endpoint. The presence of this insecure default poses a significant risk to user data integrity and system security.

Affected Version(s)

X-SpringBoot 0 <= 6.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-97064 - Proof of Concept

References

https://github.com/LinYuanyi1/cve-request-poc/blob/master...
exploit
https://github.com/yzcheng90/X-SpringBoot/blob/d74ddba989...
technical-description
https://github.com/yzcheng90/X-SpringBoot/blob/d74ddba989...
technical-description

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yaqi Chao
Mingsheng Lin
.