X-SpringBoot through 6.0 returns login verification codes in HTTP responses from unauthenticated endpoints GET /sys/mobile/code and GET /sys/email/code without sending them to account owners. Attackers can request codes using known mobile numbers or email addresses, read them from responses, and authenticate as victims via POST /sys/emailOrMobileLogin/login to hijack accounts.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable yes

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
yzcheng90 X-SpringBoot unaffected
Version Status Constraints
0 affected ≤ 6.0

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/LinYuanyi1/cve-request-poc/blob/master/x-springboot/02_sms-code-account-takeover.py cve-icon cve-icon
https://github.com/yzcheng90/X-SpringBoot cve-icon cve-icon
https://github.com/yzcheng90/X-SpringBoot/blob/d74ddba989c0449948ff1ddb0d211b6a7ce81bfa/src/main/java/com/suke/czx/modules/sys/controller/SysLoginController.java#L94-L134 cve-icon cve-icon
https://www.vulncheck.com/advisories/x-springboot-through-6.0-authentication-bypass-via-login-code cve-icon cve-icon
History

Fri, 25 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 25 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Description X-SpringBoot through 6.0 returns login verification codes in HTTP responses from unauthenticated endpoints GET /sys/mobile/code and GET /sys/email/code without sending them to account owners. Attackers can request codes using known mobile numbers or email addresses, read them from responses, and authenticate as victims via POST /sys/emailOrMobileLogin/login to hijack accounts.
Title X-SpringBoot through 6.0 Authentication Bypass via Login Code
Weaknesses CWE-287
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-25T18:40:04.260Z

Reserved: 2026-09-23T23:51:32.671Z

Link: CVE-2026-97063

cve-icon Vulnrichment

Updated: 2026-09-25T18:39:59.327Z

cve-icon NVD

Status : Received

Published: 2026-09-25T19:17:59.267

Modified: 2026-09-25T19:17:59.267

Link: CVE-2026-97063

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-25T20:00:10Z

Weaknesses