Description
The Schema & Structured Data for WP & AMP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'saswp_custom_schema_field' profile field in all versions up to, and including, 1.54 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| magazine3 | Schema & Structured Data for WP & AMP | ≤ 1.54 | — |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/651a7036-d421-41b7-91db-102e60d8274e?source=cve
- https://plugins.trac.wordpress.org/browser/schema-and-structured-data-for-wp/tags/1.53/admin_section/common-function.php#L1874
- https://plugins.trac.wordpress.org/browser/schema-and-structured-data-for-wp/tags/1.53/admin_section/structure-admin.php#L2605
- https://plugins.trac.wordpress.org/browser/schema-and-structured-data-for-wp/tags/1.53/output/function.php#L171
- https://plugins.trac.wordpress.org/changeset/3441582/schema-and-structured-data-for-wp/trunk?contextall=1&old=3429983&old_path=%2Fschema-and-structured-data-for-wp%2Ftrunk#file0