CVE-2026-27416 — BPlugins PDF Poster Vulnerability
CVE-2026-27416 — Missing Authorization vulnerability in bPlugins PDF Poster allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects PDF Poster: from n/a through 2.4.1.
What This Means For You
- If your environment is affected by CWE-862, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-27416 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 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.
CVE-2026-27416 - BPlugins PDF Poster Unauthenticated Access
title: CVE-2026-27416 - BPlugins PDF Poster Unauthenticated Access
id: scw-2026-05-07-ai-1
status: experimental
level: high
description: |
Detects attempts to exploit CVE-2026-27416 by accessing the PDF Poster plugin's download functionality without proper authentication. This rule looks for specific URI paths and query parameters commonly associated with the exploit, targeting unauthenticated access to download files.
author: SCW Feed Engine (AI-generated)
date: 2026-05-07
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-27416/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri|contains:
- '/wp-content/plugins/pdf-poster/'
cs-uri-query|contains:
- 'action=pdfposter_download'
sc-status:
- 200
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-27416 | vulnerability | CVE-2026-27416 |
| CWE-862 | weakness | CWE-862 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 07, 2026 at 12:16 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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