CVE-2026-39392CWE-79

CI4MS has Stored XSS in Pages Content Due to Missing html_purify Sanitization

Medium · published April 8, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
15.4
In the wild
Unconfirmed
What it is

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to 0.31.4.0, the Pages module does not apply the html_purify validation rule to content fields during create and update operations, while the Blog module does. Page content is stored unsanitized in the database and rendered as raw HTML on the public frontend via echo $pageInfo->content. An authenticated admin with page-editing privileges can inject arbitrary JavaScript that executes in the browser of every public visitor viewing the page. This vulnerability is fixed in 0.31.4.0.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00250 · 15.4th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-04-08T14:30Z
EPSS history
Timeline
  • 08 APR 14:30Z
    CI4MS has Stored XSS in Pages Content Due to Missing html_purify Sanitization
    cvelistv5