CVE-2026-34569

[CVE catalog]

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, the application fails to properly sanitize user-controlled input when creating or editing blog categories. An attacker can inject a malicious JavaScript payload into the category title field, which is then stored server-side. This stored payload is later rendered unsafely across public-facing blog category pages, administrative interfaces, and blog post views without proper output encoding, leading to stored cross-site scripting (XSS). This issue has been patched in version 0.31.0.0.

Severity

Critical · CVSS 9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Published

Apr 1, 2026, 10:16:20 PM UTC

Source

[NVD] · [CVE record]

EPSS

0.32% · Oct 27, 2026

{
  "package_releases": [],
  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "ci4ms",
      "ecosystem": "cpe",
      "fixed_version": "0.31.0.0",
      "provider_source": "nvd"
    },
    {
      "name": "ci4ms",
      "ranges": [
        {
          "fixed": "0.31.0.0",
          "introduced": "",
          "last_affected": "",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34569",
      "fixed_version": "0.31.0.0",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-34569",
      "provider_updated_at": "2026-10-26T22:10:00.163"
    }
  ]
}