Description
The YouTube Subscribe plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.0.0 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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| mahabubs | YouTube Subscribe | ≤ 3.0.0 | — |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9996cdc7-4d97-4b27-b697-09bbdbcd865d?source=cve
- https://wordpress.org/plugins/easy-youtube-subscribe/
- https://plugins.trac.wordpress.org/browser/easy-youtube-subscribe/tags/3.0.0/includes/sm-youtube-subscription-shortcode.php#L242
- https://plugins.trac.wordpress.org/browser/easy-youtube-subscribe/tags/3.0.0/includes/sm-youtube-subscription-shortcode.php#L246