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CVE-2026-109512— Mang Board <= 2.4.4 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'content' 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 2.4.4 及更早的所有版本中，存在存储型跨站脚本（Stored XSS）漏洞。该漏洞源于对 参数的输入清理不足以及输出转义缺失。这使得拥有订阅者（Subscriber）及以上权限的已认证攻击者，能够在页面中注入任意 Web 脚本；一旦其他用户访问被注入的页面，这些脚本便会执行。 此外，攻击者可在修改请求中省略 参数，从而完全绕过 HTMLPurifier 净化流程。此时，仅剩的防御机制为 编码，而该编码在页面渲染时会被完全逆转，导致防护失效。

CVSS 6.4 · Medium EPSS 0.22% · P11

Affected Version Matrix 1

VendorProduct Version RangeStatus
kitae-park Mang Board ≤ 2.4.4 affected
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I. Basic Information for CVE-2026-109512

Vulnerability Information
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Vulnerability Title
Mang Board <= 2.4.4 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'content' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The Mang Board plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'content' parameter in all versions up to, and including, 2.4.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The sanitization bypass is further compounded by the ability to omit the data_type parameter in a modify request, which skips the HTMLPurifier branch entirely and leaves only mbw_htmlspecialchars2 encoding — fully reversed at render — as the sole barrier.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
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-2026-109512

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III. Intelligence Information for CVE-2026-109512

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Vendor Pages for CVE-2026-109512 (2)

Other References for CVE-2026-109512 (1)

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

CVE-2026-109219 9.8 CRITICAL Mang Board <= 2.4.4 - Unauthenticated Arbitrary File Upload via 'image_path' Parameter
CVE-2026-109998 7.2 HIGH Mang Board <= 2.4.3 - Unauthenticated Stored Cross-Site Scripting via 'content' Parameter

IV. Related Vulnerabilities

Same product: Mang Board
Same vendor: kitae-park
Same weakness: CWE-79

V. Comments for CVE-2026-109512

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