CVE-2026-25509 CI4MS Vulnerable to User Email Enumeration via Password Reset Flow
An unauthenticated attacker can enumerate registered user emails by analyzing responses during the password reset process in CI4MS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-25509?
CVE-2026-25509 is a medium-severity vulnerability in ci4-cms-erp ci4ms, published on 3 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-25509?
2 open source packages ship an affected version, including ci4-cms-erp/ci4ms. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
ci4-cms-erp/ci4ms Packagist | All versions | 0.28.5.0 |
ci4-cms-erp/ci4ms Packagist | All versions | 0.28.5.0 |
Products include Ci4-Cms-Erp Ci4ms.
How do I fix CVE-2026-25509?
Upgrade ci4-cms-erp/ci4ms to 0.28.5.0 or later.
Is CVE-2026-25509 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-25509 exists.
Other vulnerabilities in ci4-cms-erp ci4ms
- CVE-2026-34569 CI4MS: Blogs Categories Full Account Takeover for All-Roles & Privilege-Escalation via Stored DOM XSS
- CVE-2026-34571 CI4MS: Stored Cross‑Site Scripting (Stored XSS) in Backend User Management Allows Session Hijacking and Full Administrative Account Compromise
- CVE-2026-25510 CI4MS Vulnerable to Remote Code Execution (RCE) via Arbitrary File Creation and Save in File Editor
- CVE-2026-34989 CI4MS: Profile & User Management Full Account Takeover for All-Roles & Privilege-Escalation via Stored DOM XSS
- CVE-2026-34559 CI4MS: Blogs Tags Full Account Takeover for All-Roles & Privilege-Escalation via Stored DOM XSS
Sources
Also known as GHSA-654x-9q7r-g966.