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CVE-2026-96666— Schema App Structured Data <= 2.3.2 - Unauthenticated Stored Cross-Site Scripting via Comment Content via 'Remove Microdata' Output Filter

Quick assessment

Affected
vberkel Schema App Structured Data
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 Schema App Structured Data 插件在所有 2.3.2 及以下版本中，因输入清理和输出转义不足，存在通过评论内容利用"Remove Microdata"输出过滤器导致的存储型跨站脚本（Stored XSS）漏洞。这使得未认证的攻击者能够在页面中注入任意 Web 脚本，当用户访问被注入的页面时，这些脚本将被执行。成功利用该漏洞需要满足两个条件：管理员已启用插件的"Remove Microdata"选项，并批准了包含恶意内容的评论。

CVSS 7.2 · High EPSS 0.30% · P22

Affected Version Matrix 1

VendorProduct Version RangeStatus
vberkel Schema App Structured Data ≤ 2.3.2 affected
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I. Basic Information for CVE-2026-96666

Vulnerability Information
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Vulnerability Title
Schema App Structured Data <= 2.3.2 - Unauthenticated Stored Cross-Site Scripting via Comment Content via 'Remove Microdata' Output Filter
Source: CVE Program / CVE List V5
Vulnerability Description
The Schema App Structured Data plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content via 'Remove Microdata' Output Filter in all versions up to, and including, 2.3.2 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. Exploitation requires that an administrator has enabled the plugin's 'Remove Microdata' option and approves the malicious comment.
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
vberkel Schema App Structured Data 0 ~ 2.3.2 -

II. Public POCs for CVE-2026-96666

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III. Intelligence Information for CVE-2026-96666

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Vendor Advisories for CVE-2026-96666 (1)

Vendor Pages for CVE-2026-96666 (1)

Other References for CVE-2026-96666 (2)

IV. Related Vulnerabilities

Same product: Schema App Structured Data
Same vendor: vberkel
Same weakness: CWE-79