CVE-2026-5361 — Cross-Site Scripting (XSS)

title: Envira Gallery Lite Stored XSS via REST API - CVE-2026-5361
id: scw-2026-05-14-ai-1
status: experimental
level: medium
description: |
  Detects attempts to exploit CVE-2026-5361 by sending a POST request to the Envira Gallery Lite REST API endpoint '/wp-json/envira/v1/update_gallery_data' with a payload containing the 'arrows' parameter, which is vulnerable to Stored XSS due to insufficient sanitization and improper output escaping.
author: SCW Feed Engine (AI-generated)
date: 2026-05-14
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-5361/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/wp-json/envira/v1/update_gallery_data'
      cs-method:
          - 'POST'
      cs-uri-query|contains:
          - 'arrows'
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse