CVE-2025-5336
Click to Chat <= 4.22 - Authenticated (Contributor+) Stored DOM-Based Cross-Site Scripting via data-no_number Parameter
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | holithemes |
| Product | click to chat – holithemes |
| Published | Jun 14, 2025 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
holithemes / Click to Chat – HoliThemes
0 ≤ 4.22
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/83695ac4-a08b-4c25-ac33-d9b7498f5a2c?source=cve wordpress.org: https://wordpress.org/plugins/click-to-chat-for-whatsapp/#developers plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/click-to-chat-for-whatsapp/tags/4.22/new/inc/assets/js/dev/app.dev.js#L126 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/click-to-chat-for-whatsapp/tags/4.22/new/inc/assets/js/dev/app.dev.js#L818 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3309693/
Credits
Asaf Mozes