CVE-2026-96666

high

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.

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

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112589

Details

Source: Mitre, NVD

Published: 2026-10-29

Updated: 2026-10-29

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.2

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Severity: High

EPSS

EPSS: 0.00296