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

2025-11-18 17:24

Md. Moniruzzaman Prodhan (NomanProdhan)

Strategic Overview

Status

Patched in 1.4.8

Affected PluginTime Slot – Booking and Appointment System

Affected Version<= 1.4.7

CVSS5.3Medium

CVECVE-2025-12842

View all Time Slot – Booking and Appointment System vulnerabilities

Vulnerability Overview

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.

Technical Analysis

REMEDIATION: Update to version 1.4.8, or a newer patched version --- IDENTIFIER: CWE-20 (Improper Input Validation) The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

External References

https://www.cve.org/CVERecord?id=CVE-2025-12842 https://www.wordfence.com/threat-intel/vulnerabilities/id/087b6943-5da8-44fe-8614-832768444178

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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