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CVE-2026-109219— Mang Board <= 2.4.4 - Unauthenticated Arbitrary File Upload via 'image_path' Parameter

Quick assessment

Affected
kitae-park Mang Board
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 的 Mang Board 插件在所有 2.4.4 及以下版本中存在任意文件上传漏洞，该漏洞源于 函数。问题在于：攻击者可控制的 参数未进行文件扩展名验证，而该参数通过 派生出的文件名绕过了仅应用于独立 参数的扩展名白名单机制。这使得未认证攻击者能够上传可能可执行的文件，进而实现远程代码执行（RCE）。利用该漏洞需要插件配置为允许访客发帖（此为插件默认模式）；此外，所需的 nonce 令牌会在每个公开的公告板页面上明文显示，因此任何无需 WordPress 登录的未认证访客均可读取该令牌。

CVSS 9.8 · Critical EPSS 0.69% · P52

Affected Version Matrix 1

VendorProduct Version RangeStatus
kitae-park Mang Board ≤ 2.4.4 affected
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I. Basic Information for CVE-2026-109219

Vulnerability Information
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Vulnerability Title
Mang Board <= 2.4.4 - Unauthenticated Arbitrary File Upload via 'image_path' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
kitae-park Mang Board 0 ~ 2.4.4 -

II. Public POCs for CVE-2026-109219

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III. Intelligence Information for CVE-2026-109219

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Patches & Fixes for CVE-2026-109219 (1)

Vendor Advisories for CVE-2026-109219 (1)

Vendor Pages for CVE-2026-109219 (1)

Other References for CVE-2026-109219 (1)

Same Patch Batch · kitae-park · 2026-10-16 · 3 CVEs total

CVE-2026-109998 7.2 HIGH Mang Board <= 2.4.3 - Unauthenticated Stored Cross-Site Scripting via 'content' Parameter
CVE-2026-109512 6.4 MEDIUM Mang Board <= 2.4.4 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'content

IV. Related Vulnerabilities

Same product: Mang Board
Same vendor: kitae-park
Same weakness: CWE-434

V. Comments for CVE-2026-109219

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