---
id: CVE-2025-11587
title: >-
  The Call Now Button – The #1 Click to Call Button for WordPress plugin for
  WordPress is vulnerable to unauthorized modification of data due to a missing
  capability check on the activate function in all versions up to, and
  including, 1.5.…
summary: >-
  The Call Now Button – The #1 Click to Call Button for WordPress plugin for
  WordPress is vulnerable to unauthorized modification of data due to a missing
  capability check on the activate function in all versions up to, and
  including, 1.5.…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-862
published: '2025-10-29'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T11:10:00.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-11587'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/call-now-button/tags/1.5.3/src/admin/api-key/class-ott-controller.php#L27
    label: security@wordfence.com
  - url: 'https://research.cleantalk.org/cve-2025-11587/'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/d77b127e-52ee-4256-9450-410413b273f6?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00234
epssPercentile: 0.13163
ingestedAt: '2026-10-08T11:31:27.673Z'
---

## Overview

The Call Now Button – The #1 Click to Call Button for WordPress plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the activate function in all versions up to, and including, 1.5.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to link the plugin to their nowbuttons.com account and add malicious buttons to the site. The vulnerability is only exploitable on fresh installs where the plugin has not been previously configured with an API key.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.