ci4-cms-erp CI4MS up to 0.31.8.0 Pages pages.php Home::index content cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, has been found in ci4-cms-erp CI4MS. Impacted is the function Home::index of the file app/Views/templates/default/pages.php of the component Pages. This manipulation of the argument content causes cross site scripting. This vulnerability is registered as CVE-2026-45270. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability has been found in ci4-cms-erp CI4MS and classified as problematic. Affected by this vulnerability is the function Home::index of the file app/Views/templates/default/pages.php of the component Pages. The manipulation of the argument content with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. The summary by CVE is:

CI4MS is a CodeIgniter 4-based content management system skeleton. Prior to version 0.31.9.0, the `Pages` backend module registers the `html_purify` validation rule on language-keyed page content but persists the raw, un-purified POST value into the database. The public renderer for pages (`Home::index()` → `app/Views/templates/default/pages.php`) emits `$pageInfo->content` without `esc()`, yielding stored XSS that fires for every public visitor of the affected page — including administrators. Because pages may be promoted to the site home page, the payload can be served at `/` and reach every visitor of the site. Version 0.31.9.0 patches the issue.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-45270 since 05/11/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

By approaching the search of inurl:app/Views/templates/default/pages.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 0.31.9.0 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Content Management System

Vendor

• ci4-cms-erp

Name

• CI4MS

Version

• 0.28.5.0
• 0.31.0.0
• 0.31.2.0
• 0.31.4.0
• 0.31.5.0
• 0.31.7.0
• 0.31.8.0

Website

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

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