CVE-2026-6566 — The Photo Gallery, Sliders, Proofing and Themes – NextGEN
CVE-2026-6566 — The Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to and including 4.2.0. This is due to insufficient object-level authorization in the image deletion REST flow where the permission
What This Means For You
- If your environment is affected by CWE-639, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-6566 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
WordPress NextGEN Gallery Image Deletion - CVE-2026-6566
title: WordPress NextGEN Gallery Image Deletion - CVE-2026-6566
id: scw-2026-05-20-ai-1
status: experimental
level: medium
description: |
Detects the specific API endpoint used by the NextGEN Gallery plugin for image deletion (DELETE /imagely/v1/images/{id}) which is vulnerable in versions up to 4.2.0. This rule targets authenticated attackers with subscriber privileges attempting to delete images without proper ownership checks, as described in CVE-2026-6566.
author: SCW Feed Engine (AI-generated)
date: 2026-05-20
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-6566/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-method:
- 'DELETE'
cs-uri:
- '/wp-content/plugins/nextgen-gallery/vendor/imagely/core-gallery-manager/src/api/v1/images/*'
sc-status:
- 200
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-6566 | vulnerability | CVE-2026-6566 |
| CWE-639 | weakness | CWE-639 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 20, 2026 at 10:16 UTC |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
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