CVE-2026-5293 — Cross-Site Scripting (XSS)

title: WordPress Diagnosis Generator Plugin Stored XSS via 'js' parameter — CVE-2026-5293
id: scw-2026-05-20-ai-1
status: experimental
level: high
description: |
  Detects attempts to exploit CVE-2026-5293 by targeting the Diagnosis Generator plugin's themeFunc() via admin-ajax.php. The presence of 'action=diagnosis_generator_themeFunc' and 'js=' in the URI query indicates a potential attempt to inject malicious JavaScript into theme files, leveraging the plugin's vulnerability.
author: SCW Feed Engine (AI-generated)
date: 2026-05-20
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-5293/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/wp-admin/admin-ajax.php'
      cs-uri-query|contains:
          - 'action=diagnosis_generator_themeFunc'
      cs-uri-query|contains:
          - 'js='
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse