Call Now Button <= 1.5.3 - Missing Authorization to Authenticated (Subscriber+) Limited Plugin Settings Update

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-11587
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-10-29 13:15:34 UTC
Updated2026-10-08 11:10:00 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

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

EPSS: 0.002340000 probability, percentile 0.135560000 (date 2026-10-23)

Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Jgrietveld Call Now Button The 1 Click To Call Button For WordPress affected 1.5.3 semver Not specified

References

ReferenceSourceLinkTags
research.cleantalk.org/cve-2025-11587 [email protected] research.cleantalk.org
plugins.trac.wordpress.org/browser/call-now-button/tags/1.5.3/src/admin/api-key/class-ot... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/d77b127e-52ee-4256-9450-41041... [email protected] www.wordfence.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Dmitrii Ignatyev (en)

Additional Advisory Data

SourceTimeEvent
CNA2025-09-26T00:00:00.000ZDiscovered
CNA2025-10-10T21:23:44.000ZVendor Notified
CNA2025-10-28T23:59:27.000ZDisclosed

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