CVE-2025-12842

MEDIUM

Booking Plugin for WordPress Appointments - Time Slot <= 1.4.7 - Unauthenticated Email Sending

Title source: llm

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.

References (4)

Core 4

Core References

Product

https://plugins.trac.wordpress.org/browser/timeslot/tags/1.4.6/public/form/email.php#L21

Product

https://plugins.trac.wordpress.org/browser/timeslot/tags/1.4.6/public/form/email.php#L23

Product

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3397527%40timeslot&new=3397527%40timeslot&sfp_email=&sfph_mail=

Third Party Advisory

https://www.wordfence.com/threat-intel/vulnerabilities/id/087b6943-5da8-44fe-8614-832768444178?source=cve

Scores

CVSS v3 5.3

EPSS 0.0025

EPSS Percentile 16.4%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-20

Status published

Products (2)

timeslotplugins/Booking Plugin for WordPress Appointments – Time Slot < 1.4.7

timeslotplugins/Time Slot – Booking and Appointment System < 1.4.7

Published Nov 19, 2025

Tracked Since Feb 18, 2026