---
id: CVE-2026-111673
title: >-
  IceCMS through 4.1.5 contains a missing authentication vulnerability that
  allows unauthenticated attackers to modify, delete, or disable any account
  because /User/** is excluded from the Shiro jwt filter
summary: >-
  IceCMS through 4.1.5 contains a missing authentication vulnerability that
  allows unauthenticated attackers to modify, delete, or disable any account
  because /User/** is excluded from the Shiro jwt filter. Attackers can send PUT
  requests …
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-306
vendor: Thecosy
product: IceCMS
affected:
  - IceCMS <= 4.1.5
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T20:17:22.020'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-111673'
references:
  - url: 'https://github.com/Thecosy/IceCMS'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/Thecosy/IceCMS/blob/afd7a9f0d04a714e7c7e735e566c27f54b5d5201/IceCMS-ment/src/main/java/com/ttice/icewkment/configuration/ShiroConfig.java#L64-L88
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/Thecosy/IceCMS/blob/afd7a9f0d04a714e7c7e735e566c27f54b5d5201/IceCMS-ment/src/main/java/com/ttice/icewkment/controller/backend/UserController.java#L743-L818
    label: disclosure@vulncheck.com
  - url: >-
      https://hackmd.io/@hieuPenguinnn/icecms-backend-user-admin-unauth-account-takeover
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/icecms-through-4.1.5-missing-authentication-via-user-administrative-endpoints
    label: disclosure@vulncheck.com
  - url: >-
      https://hackmd.io/@hieuPenguinnn/icecms-backend-user-admin-unauth-account-takeover
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.0055
epssPercentile: 0.45851
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-10-16T19:52:59.726542Z'
ingestedAt: '2026-10-16T18:43:08.666Z'
---

## Overview

IceCMS through 4.1.5 contains a missing authentication vulnerability that allows unauthenticated attackers to modify, delete, or disable any account because /User/** is excluded from the Shiro jwt filter. Attackers can send PUT requests to /User/updateUser to set a new password and role on any userId, including administrators, enabling full account takeover.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.