CVE-2026-42192 — Cross-Site Scripting (XSS)

title: CVE-2026-42192 - Plunk Stored XSS in Campaign Body
id: scw-2026-05-08-ai-1
status: experimental
level: high
description: |
  Detects attempts to inject script tags into the email body of a campaign within Plunk, exploiting CVE-2026-42192. This rule specifically targets the campaign management feature where un-sanitized HTML content is stored and later rendered, leading to stored XSS.
author: SCW Feed Engine (AI-generated)
date: 2026-05-08
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-42192/
tags:
  - attack.initial_access
  - attack.t1189
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/campaigns/'
      cs-uri-query|contains:
          - 'email_body='
      cs-uri-query|contains:
          - '<script>'
  condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse