The Booking Plugin for WordPress Appointments – Time Slot plugin for WordPress is vulnerable to unauthorized email sending in versions up to, and including, 1.4.7 due to missing validation on the tslot_appt_email AJAX action. This makes it possible for unauthenticated attackers to send appointment notification emails to arbitrary recipients with attacker-controlled text content in certain email fields, potentially enabling the site to be abused for phishing campaigns or spam distribution.
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Fixes

Solution

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Workaround

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History

Wed, 19 Nov 2025 06:00:00 +0000

Type Values Removed Values Added
Description The Booking Plugin for WordPress Appointments – Time Slot plugin for WordPress is vulnerable to unauthorized email sending in versions up to, and including, 1.4.7 due to missing validation on the tslot_appt_email AJAX action. This makes it possible for unauthenticated attackers to send appointment notification emails to arbitrary recipients with attacker-controlled text content in certain email fields, potentially enabling the site to be abused for phishing campaigns or spam distribution.
Title Booking Plugin for WordPress Appointments – Time Slot <= 1.4.7 - Unauthenticated Arbitrary Email Sending
Weaknesses CWE-20
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2025-11-19T05:45:10.444Z

Reserved: 2025-11-06T20:19:03.726Z

Link: CVE-2025-12842

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2025-11-19T06:15:46.990

Modified: 2025-11-19T06:15:46.990

Link: CVE-2025-12842

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.