Schema & Structured Data for WP & AMP <= 1.68 - Unauthenticated PHP Object Injection via Review Submission
- ID
- WPSEC-2026-2003
- Plugin
- Schema & Structured Data for WP & AMP (schema-and-structured-data-for-wp)
- Affected
- all versions before 1.69
- Remediation
- Update to 1.69 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness
- CWE-502
- Usage
- Plugin High · Affected versions High among sites WPSec scans, 2026-10-30
- Attack surface
- Schema & Structured Data for WP & AMP on WPSec AttackSurface
- Fix released
- Published
Description
The Schema & Structured Data for WP & AMP plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.68 via deserialization of untrusted post meta during the plugin's data export. Post meta values, including those of reviews created through front-end review submissions with any post status, were passed to unserialize() without restricting allowed classes. This makes it possible for unauthenticated attackers to inject a PHP object that is deserialized when an administrator performs an export. No known POP chain is present in the plugin itself; if a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
References
- https://wpsec.com/vuln/WPSEC-2026-2003/
- https://plugins.svn.wordpress.org/schema-and-structured-data-for-wp/tags/1.69/
- https://wordpress.org/plugins/schema-and-structured-data-for-wp/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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