Summaryinfo

A vulnerability has been found in ci4-cms-erp ci4ms and classified as problematic. This vulnerability affects unknown code of the component Administrative Interface. Performing a manipulation results in cross site scripting. This vulnerability is cataloged as CVE-2026-34571. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in ci4-cms-erp ci4ms. This affects an unknown part of the component Administrative Interface. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. 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 0.31.0.0, a Stored Cross-Site Scripting (Stored XSS) vulnerability exists in the backend user management functionality. The application fails to properly sanitize user-controlled input before rendering it in the administrative interface, allowing attackers to inject persistent JavaScript code. This results in automatic execution whenever backend users access the affected page, enabling session hijacking, privilege escalation, and full administrative account compromise. This issue has been patched in version 0.31.0.0.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-34571 since 03/30/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 0.31.0.0 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Type

• Content Management System

Vendor

• ci4-cms-erp

Name

• ci4ms

Version

• 0.28.5.0

Website

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

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