Medium 5.3Published Nov 19, 2025

CVE-2025-12842Booking Plugin for WordPress Appointments – Time Slot <= 1.4.7 - Unauthenticated Arbitrary Email Sending

Updated under an hour ago (Oct 28, 2026, 5:10 AM ET)

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It affects timeslotplugins Time Slot – Booking and Appointment System. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for timeslotplugins Time Slot – Booking and Appointment System

Exploited in the last 30 days

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.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-20
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Wordfence
NVD analysis: Deferred
Record last updated: Apr 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

timeslotplugins Time Slot – Booking and Appointment System timeslotplugins:time_slot_booking_and_appointment_system (from the name)	through 1.4.7	CNA record

References

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/087b6943-5da8-44fe-8614-832768444178?source=cve
https://plugins.trac.wordpress.org/browser/timeslot/tags/1.4.6/public/form/email.php#L21
https://plugins.trac.wordpress.org/browser/timeslot/tags/1.4.6/public/form/email.php#L23
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3397527%40timeslot&new=3397527%40timeslot&sfp_email=&sfph_mail=

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.