CVE-2025-5336

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

mediumImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

6.4

CVSS Score

6.4

CVSS Score

medium

Severity

4.23

Patched in

Time to patch

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.

CVSS Vector Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Low

Confidentiality

Low

Integrity

None

Availability

Technical Details

Affected versions<=4.22

PublishedJune 13, 2025

Last updatedJune 14, 2025

Affected pluginclick-to-chat-for-whatsapp

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/83695ac4-a08b-4c25-ac33-d9b7498f5a2c?source=api-prod

Check if your site is affected.

Run a free security audit to detect vulnerable plugins, outdated versions, and misconfigurations.

Run free audit Browse CVE database