CVE-2026-109219 json
Mang Board - 2.4.4 - Unauthenticated Arbitrary File Upload via 'image_path' Parameter
published 24d ago modified 17d ago also EUVD-2026-102636
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
The Mang Board plugin for WordPress is vulnerable to Arbitrary File Upload in version 2.4.4 via the mbw_file_upload function. This is due to missing file extension validation on the attacker-supplied image_path parameter, whose basename-derived file name bypasses the extension allowlist applied only to the separate file_name parameter. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible. Exploitation requires the board to be configured to allow guest posts, which is the plugin's default mode; the required nonce is printed on every public board page, making it readable by any unauthenticated visitor without a WordPress login.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 24d ago
Exploit prediction
0.69% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- kitae-park Mang Board
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/1e4f4860-b4c9-4f41-b1d0-0b2da8c88b99?source=cve
- plugins.trac.wordpress.org /browser/mangboard/tags/2.4.4/includes/functions/func.api.php#L972
- plugins.trac.wordpress.org /browser/mangboard/tags/2.4.4/includes/functions/func.api.php#L902
- plugins.trac.wordpress.org /browser/mangboard/tags/2.4.4/includes/functions/func.api.php#L903
- plugins.trac.wordpress.org /browser/mangboard/tags/2.4.4/api/mb-board.php#L428
- plugins.trac.wordpress.org /browser/mangboard/tags/2.4.4/includes/mb-actions.php#L520
- wordpress.org /plugins/mangboard/
- plugins.trac.wordpress.org /changeset/3743247/mangboard/trunk/includes/functions/func.api.php
Sources
- CVE List CVE-2026-109219
- NVD CVE-2026-109219
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.