Mang Board <= 2.4.4 - Unauthenticated Arbitrary File Upload via 'image_path' Parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-109219
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-16 05:17:29 UTC
Updated2026-10-16 05:17:29 UTC
DescriptionThe Mang Board plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 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.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-434 | CWE-434 CWE-434 Unrestricted Upload of File with Dangerous Type

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Kitae-park Mang Board affected 2.4.4 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/changeset/3743247/mangboard/trunk/includes/functions/func.api... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/mangboard/tags/2.4.4/includes/functions/func.api.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/mangboard/tags/2.4.4/includes/mb-actions.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/1e4f4860-b4c9-4f41-b1d0-0b2da... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/mangboard/tags/2.4.4/includes/functions/func.api.php [email protected] plugins.trac.wordpress.org
wordpress.org/plugins/mangboard [email protected] wordpress.org
plugins.trac.wordpress.org/browser/mangboard/tags/2.4.4/includes/functions/func.api.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/mangboard/tags/2.4.4/api/mb-board.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Osman Hussein (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-10-12T13:59:01.000ZVendor Notified
CNA2026-10-15T16:07:17.000ZDisclosed

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