CVE-2026-25509
Email Enumeration Vulnerability in CI4MS Authentication Module
Publication date: 2026-02-03
Last updated on: 2026-02-10
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| ci4-cms-erp | ci4ms | to 0.28.5.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-204 | The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere. |
| CWE-203 | The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The vulnerability in CI4MS, a CodeIgniter 4-based CMS skeleton, is an email enumeration issue in its authentication implementation prior to version 0.28.5.0.
An unauthenticated attacker can exploit this vulnerability by analyzing the application's response during the password reset process to determine whether a specific email address is registered in the system.
This issue was fixed in version 0.28.5.0.
How can this vulnerability impact me? :
This vulnerability allows an attacker to confirm the existence of email addresses registered in the system without authentication.
Such information can be used for targeted phishing attacks, social engineering, or to facilitate further attacks against known users.
The CVSS base score of 5.3 indicates a medium severity impact, with low complexity and no privileges or user interaction required.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, you should upgrade CI4MS to version 0.28.5.0 or later, where the email enumeration issue during the password reset process has been patched.