Description
The JavaScript Notifier plugin for WordPress is vulnerable to Stored Cross-Site Scripting via plugin settings in all versions up to, and including, 1.2.8. This is due to insufficient input sanitization and output escaping on user-supplied attributes in the `wp_footer` action. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| freemp | JavaScript Notifier | ≤ 1.2.8 | — |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/97696702-4d40-41dd-a25f-f2ee7681a2c9?source=cve
- https://plugins.trac.wordpress.org/browser/javascript-notifier/trunk/javascript-notifier.php#L75
- https://plugins.trac.wordpress.org/browser/javascript-notifier/tags/1.2.8/javascript-notifier.php#L75
- https://plugins.trac.wordpress.org/changeset/3449861/