PT-2025-25474 · WordPress · Click To Chat

Asaf Mozes · Published 2025-06-14 · Updated 2025-06-14 · CVE-2025-5336

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Click to Chat plugin for WordPress versions up to, and including, 4.22

Description The issue is related to Stored Cross-Site Scripting due to insufficient input sanitization and output escaping. This allows 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. The data-no number parameter is specifically vulnerable to this type of attack.

Recommendations For Click to Chat plugin for WordPress versions up to, and including, 4.22, consider updating to a version that addresses the insufficient input sanitization and output escaping issue. As a temporary workaround, restrict access to the data-no number parameter to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-5336

Affected Products

Click To Chat

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2025-5336 · Security Note
• https://plugins.trac.wordpress.org/browser/click-to-chat-for-whatsapp/tags/4.22/new/inc/assets/js/dev/app.dev.js#L818 · Note
• https://plugins.trac.wordpress.org/changeset/3309693 · Note
• https://wordpress.org/plugins/click-to-chat-for-whatsapp/#developers · Note
• https://twitter.com/CVEnew/status/1933807793649197115 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/83695ac4-a08b-4c25-ac33-d9b7498f5a2c?source=cve · Note
• https://t.me/cvetracker/26240 · Telegram Post
• https://plugins.trac.wordpress.org/browser/click-to-chat-for-whatsapp/tags/4.22/new/inc/assets/js/dev/app.dev.js#L126 · Note
• https://t.me/cvenotify/125708 · Telegram Post