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CVE-2026-97336— CMB2 <= 2.13.0 - Unauthenticated Stored Cross-Site Scripting via 'file_list' Field Type

Quick assessment

Affected
jtsternberg CMB2
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 CMB2 插件在 2.13.0 及之前所有版本中均存在存储型跨站脚本（Stored XSS）漏洞，该漏洞源于 'file_list'（文件列表）字段类型存在输入 sanitization（清理）和输出转义不足的问题。这使得未经身份验证的攻击者能够在网页中注入任意 Web 脚本，当用户访问被注入的页面时，这些脚本将自动执行。 该漏洞仅在整合 CMB2 的插件或主题于公开可访问的前端表单或用户元数据框（user meta box）中注册了 file_list 字段时才可被利用。由于 CMB2 本

CVSS 7.2 · High EPSS 0.29% · P19

Affected Version Matrix 1

VendorProduct Version RangeStatus
jtsternberg CMB2 ≤ 2.13.0 affected
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I. Basic Information for CVE-2026-97336

Vulnerability Information
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Vulnerability Title
CMB2 <= 2.13.0 - Unauthenticated Stored Cross-Site Scripting via 'file_list' Field Type
Source: CVE Program / CVE List V5
Vulnerability Description
The CMB2 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'file_list' Field Type in all versions up to, and including, 2.13.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is only exploitable when an integrating plugin or theme registers a file_list field on a publicly accessible front-end form or a user meta box, as CMB2 is a developer library and does not expose these fields by default.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/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
jtsternberg CMB2 0 ~ 2.13.0 -

II. Public POCs for CVE-2026-97336

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III. Intelligence Information for CVE-2026-97336

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Patches & Fixes for CVE-2026-97336 (2)

News Coverage for CVE-2026-97336 (1)

Vendor Pages for CVE-2026-97336 (2)

IV. Related Vulnerabilities

Same product: CMB2
Same vendor: jtsternberg
Same weakness: CWE-79

V. Comments for CVE-2026-97336

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