Call Now Button <= 1.5.4 - Authenticated (Subscriber+) Missing Authorization to Multiple Functions

Summary

The Call Now Button – The #1 Click to Call Button for WordPress plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on multiple functions in all versions up to, and including, 1.5.4. This makes it possible for authenticated attackers, with Subscriber-level access and above, to generate links to billing portal, where they can view and modify billing information of the connected, account, generate chat session tokens, view domain status, etc. This vulnerability was partially fixed in version 1.5.4 and fully fixed in version 1.5.5

Timeline

1. Oct 29, 2025, 12:31 PM UTCCVE published
2. Oct 29, 2025, 1:24 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

3. Apr 8, 2026, 4:46 PM UTCRecord last updated

Affected versions

• jgrietveld Call Now Button – The #1 Click to Call Button for WordPress

  through 1.5.4

References 7