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CVE-2026-25509— CI4MS Vulnerable to User Email Enumeration via Password Reset Flow

Quick assessment

Affected
ci4-cms-erp ci4ms
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

CI4MS是Ci4MS开源的一个博客页面管理工具。 CI4MS 0.28.5.0之前版本存在安全漏洞，该漏洞源于身份验证实现存在电子邮件枚举问题，未经验证的攻击者可通过分析密码重置过程中的应用响应来确定电子邮件地址是否已注册。

CVSS 5.3 · Medium EPSS 0.39% · P33
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I. Basic Information for CVE-2026-25509

Vulnerability Information
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Vulnerability Title
CI4MS Vulnerable to User Email Enumeration via Password Reset Flow
Source: CVE Program / CVE List V5
Vulnerability Description
CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to version 0.28.5.0, the authentication implementation in CI4MS is vulnerable to email enumeration. An unauthenticated attacker can determine whether an email address is registered in the system by analyzing the application's response during the password reset process. This issue has been patched in version 0.28.5.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
响应差异性信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
CI4MS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CI4MS是Ci4MS开源的一个博客页面管理工具。 CI4MS 0.28.5.0之前版本存在安全漏洞，该漏洞源于身份验证实现存在电子邮件枚举问题，未经验证的攻击者可通过分析密码重置过程中的应用响应来确定电子邮件地址是否已注册。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ci4-cms-erp ci4ms < 0.28.5.0 -

II. Public POCs for CVE-2026-25509

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III. Intelligence Information for CVE-2026-25509

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Patches & Fixes for CVE-2026-25509 (1)

Vendor Advisories for CVE-2026-25509 (1)

IV. Related Vulnerabilities

Same product: ci4ms
Same vendor: ci4-cms-erp
Same weakness: CWE-204