CVE-2023-39992 HIGH

CVE-2023-39992: WordPress Online Booking & Scheduling Calendar for WordPress by vcita Plugin <= 4.3.2 is vulnerable to Cross Site Scripting (XSS)

Vendor Vcita.com
Product Online Booking & Scheduling Calendar for WordPress by vcita
Weakness CWE-79 · XSS
Published September 4, 2023
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in vCita.Com Online Booking & Scheduling Calendar for WordPress by vcita plugin <= 4.3.2 versions.

Explanation of Vulnerability in Simple Terms

02Summary

The Online Booking & Scheduling Calendar plugin for WordPress versions up to 4.3.2 contains a stored cross-site scripting (XSS) vulnerability. An attacker can inject malicious scripts that execute in the browsers of site visitors and administrators. The vulnerability requires user interaction to trigger and can affect multiple users across the site.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in visitors' browsers, stealing session tokens, redirecting users, or defacing content.

Potential impact on your site

04Site Impact

Visitors and admins may have their sessions hijacked, be redirected to malicious sites, or see altered page content.

Conditions required to exploit

05Prerequisites

No authentication required. A victim must visit a page containing the attacker's malicious input.

Key dates

06Disclosure timeline

September 4, 2023 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE

CVE-2026-15730 GamiPress <= 7.9.9.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'heading_size' Shortcode Attribute CVE-2026-65527 WordPress LIQUID SPEECH BALLOON plugin <= 1.2.5 - Cross Site Scripting (XSS) vulnerability CVE-2026-15464 WP Hotel Booking <= 2.3.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'widget_search' Shortcode Attribute CVE-2026-65446 WordPress Kali Forms plugin <= 2.4.18 - Cross Site Scripting (XSS) vulnerability CVE-2026-15016 Paid Memberships Pro – Content Restriction, User Registration, & Paid Subscriptions <= 3.8.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting