CVE-2026-34246 — Cross-Site Scripting (XSS)

title: CtrlPanel Stored XSS via Role Management - CVE-2026-34246
id: scw-2026-05-19-ai-1
status: experimental
level: high
description: |
  Detects the specific Stored XSS payload being injected into the 'name' or 'color' fields within the CtrlPanel admin role management interface, which is the primary vector for CVE-2026-34246. This rule targets the POST request to the /admin/roles endpoint where the malicious data is persisted.
author: SCW Feed Engine (AI-generated)
date: 2026-05-19
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-34246/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/admin/roles'
      cs-method|exact:
          - 'POST'
      cs-uri-query|contains:
          - 'name=<img src=x onerror='
          - 'color=<img src=x onerror='
  condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse