CVE-2026-34569 | CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a … | CVSS 10.0 CRITICAL

Description

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.

Metadata

CVE ID: CVE-2026-34569
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-03-30 16:56 UTC
Published: 2026-04-01 21:29 UTC
Last updated: 2026-04-02 18:05 UTC
Primary CWE: CWE-79
CWE-79: Improper Neutralization of Input During Web Page Gen…
Vendor / Product: ci4-cms-erp / ci4ms
Sources: cve.org · NVD

Severity & Metrics

10.0 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: no
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
ci4-cms-erp	ci4ms	—	< 0.31.0.0

Weakness (CWE)

CWE	Source	Description
CWE-79	cna	CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS scores (1)

Score	Severity	Version	Source	Vector
10.0	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References (2)

https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-fhrf-q333-82fm https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-fhrf-q333-82fm
https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.0.0 https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.0.0