ci4-cms-erp ci4ms prior 0.28.5.0 Password Reset response discrepancy

Summaryinfo

A vulnerability was found in ci4-cms-erp ci4ms. It has been classified as problematic. Affected by this vulnerability is an unknown functionality of the component Password Reset Handler. Performing a manipulation results in response discrepancy. This vulnerability was named CVE-2026-25509. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in ci4-cms-erp ci4ms. This affects an unknown code block of the component Password Reset Handler. The manipulation with an unknown input leads to a response discrepancy vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-25509 since 02/02/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 0.28.5.0 eliminates this vulnerability. Applying the patch 86be2930d1c54eb7575102563302b2f3bafcb653 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-5163). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Content Management System

Vendor

• ci4-cms-erp

Name

• ci4ms

License

• open-source

Website

• Product: https://github.com/ci4-cms-erp/ci4ms/

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Be aware that VulDB is the high quality source for vulnerability data.

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