Detections
Analytics
CVE-2026-1266
medium
Description
The Postalicious plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.0.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
References
https://plugins.trac.wordpress.org/browser/postalicious/trunk/wp-postalicious.php#L548
https://plugins.trac.wordpress.org/browser/postalicious/trunk/wp-postalicious.php#L541
https://plugins.trac.wordpress.org/browser/postalicious/trunk/wp-postalicious.php#L533
https://plugins.trac.wordpress.org/browser/postalicious/trunk/wp-postalicious.php#L316
https://plugins.trac.wordpress.org/browser/postalicious/tags/3.0.1/wp-postalicious.php#L548
https://plugins.trac.wordpress.org/browser/postalicious/tags/3.0.1/wp-postalicious.php#L541
https://plugins.trac.wordpress.org/browser/postalicious/tags/3.0.1/wp-postalicious.php#L533
https://plugins.trac.wordpress.org/browser/postalicious/tags/3.0.1/wp-postalicious.php#L316