QwikSec

Security Database

CVE

CWE

Training

CVE-2025-12842

Published: Nov 19, 2025

Modified: Apr 8, 2026

PUBLISHED

CVSS v3.1

5.3

MEDIUM

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.

Vendor	Product	Versions
timeslotplugins	Time Slot – Booking and Appointment System	affected `0 - <= 1.4.7`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

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=

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.