Mang Board WP plugin: Unrestricted file upload leads to web shell upload
Summary
The WordPress plugin Mang Board WP up to and including version 2.4.4 allows file uploads of dangerous types without sufficient restriction. An attacker can upload a web shell to the web server, which enables server-level code execution and full takeover of the website. The CVE data and sources give a CVSS score of 9.9 (critical), but the NVD record is still deferred, so the scoring is not NVD-verified. Research notes suggest that the upload may be reachable without authentication, although the CVSS vector lists low privileges, so this remains unconfirmed.
Affected
- Mang Board WP plugin (WordPress) up to and including 2.4.4
Fixed in
- Mang Board WP 2.4.5 (per Patchstack and the CVE record)
Workaround
- Unknown. No workaround is documented in the sources beyond updating the plugin.
- Unconfirmed: disabling guest posting in the board may reduce exposure until the update is applied.
Exploitation
- Not confirmed exploited in the wild; not listed as known exploited (KEV) in the sources checked.
- Patchstack expects exploitation, but this is a prediction, not an observed attack.
- No public proof of concept confirmed. CISA SSVC: exploitation none, automatable no, technical impact total.
Our recommendation
- Update the Mang Board WP plugin to version 2.4.5 or later immediately on every WordPress site where it is installed.
- If an update is not possible right away, disable the plugin or ask the web developer or hosting provider for help.
- Check upload directories and the web root for unexpected PHP or script files, and review web server logs for suspicious uploads, especially if the plugin was unpatched while the site was public.
- Confirm the fix version in the WordPress.org changelog before closing the ticket.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Patchstack advisory patchstack.com
- OpenCVE app.opencve.io
- VulDB vuldb.com
- Strix www.strix.ai
- CVE-2026-109219 (Vulners) vulners.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 30 Oct 2026, 15:01.
Original description (NVD)
Unrestricted Upload of File with Dangerous Type vulnerability in Kitae Park Mang Board WP mangboard allows Upload a Web Shell to a Web Server.This issue affects Mang Board WP: from n/a through 2.4.4.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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