Description
The Click to Chat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-no_number’ parameter in all versions up to, and including, 4.22 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 |
|---|---|---|---|
| holithemes | Click to Chat – HoliThemes | ≤ 4.22 | — |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/83695ac4-a08b-4c25-ac33-d9b7498f5a2c?source=cve
- https://wordpress.org/plugins/click-to-chat-for-whatsapp/#developers
- https://plugins.trac.wordpress.org/browser/click-to-chat-for-whatsapp/tags/4.22/new/inc/assets/js/dev/app.dev.js#L126
- https://plugins.trac.wordpress.org/browser/click-to-chat-for-whatsapp/tags/4.22/new/inc/assets/js/dev/app.dev.js#L818
- https://plugins.trac.wordpress.org/changeset/3309693/