CVE-2025-5336

Click to Chat <= 4.22 - Authenticated (Contributor+) Stored DOM-Based Cross-Site Scripting via data-no_number Parameter

CVSS 6.4 MEDIUMEPSS 0.2%CWE-79

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.4EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

14 Jun 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Affected products

holithemes · Click to Chat – HoliThemes

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References

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/https://wordpress.org/plugins/click-to-chat-for-whatsapp/#developers https://www.wordfence.com/threat-intel/vulnerabilities/id/83695ac4-a08b-4c25-ac33-d9b7498f5a2c?source=cve