Vulnerability · Published Oct 29, 2026 · Assigned by Wordfence
CVE-2026-96666Schema App Structured Data <= 2.3.2 - Unauthenticated Stored Cross-Site Scripting via Comment Content via 'Remove Microdata' Output Filter
High 7.2
In plain English
A high-severity cross-site scripting in Schema App Structured Data from vberkel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| vberkel | Schema App Structured Data | 0 – through 2.3.2 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7e0a6ba5-6b2a-49b2-8780-df5eb6a5eecd?source=cve
- https://plugins.trac.wordpress.org/browser/schema-app-structured-data-for-schemaorg/tags/2.3.2/lib/SchemaFront.php#L547
- https://plugins.trac.wordpress.org/browser/schema-app-structured-data-for-schemaorg/tags/2.3.2/lib/SchemaFront.php#L541
- https://plugins.trac.wordpress.org/browser/schema-app-structured-data-for-schemaorg/tags/2.3.2/lib/SchemaFront.php#L40