CVE-2023-44987 MEDIUM

CVE-2023-44987: WordPress Timely Booking Button Plugin <= 2.0.2 is vulnerable to Cross Site Scripting (XSS)

Vendor Timely - Appointment Software
Product Timely Booking Button
Weakness CWE-79 · XSS
Published October 16, 2023
Last update April 28, 2026

CVSS base score

5.9/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Timely - Appointment software Timely Booking Button plugin <= 2.0.2 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Timely Booking Button versions up to 2.0.2 contain a cross-site scripting (XSS) vulnerability that allows high-privilege users to inject malicious scripts. An attacker with administrative access can craft a malicious link that, when clicked by another user, executes JavaScript in their browser. This could lead to session hijacking, credential theft, or unauthorized actions performed on behalf of the victim.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in another user's browser session.

Potential impact on your site

04Site Impact

An admin account compromise could allow attackers to steal user data or perform unauthorized actions affecting site visitors.

Conditions required to exploit

05Prerequisites

Attacker must have high-level administrative privileges and the victim must click a malicious link.

Key dates

06Disclosure timeline

October 16, 2023 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE