CVE-2023-51520 MEDIUM

CVE-2023-51520: WordPress Booking Calendar Plugin < 9.7.4 is vulnerable to Cross Site Scripting (XSS)

Vendor Wpdevelop / Oplugins
Product WP Booking Calendar
Weakness CWE-79 · XSS
Published February 1, 2024
Last update April 28, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPdevelop / Oplugins WP Booking Calendar allows Stored XSS.This issue affects WP Booking Calendar: from n/a before 9.7.4.

Explanation of Vulnerability in Simple Terms

02Summary

WP Booking Calendar versions before 9.7.4 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other users, including site administrators. The vulnerability requires user interaction to trigger. Attackers can steal session tokens, modify site content, or perform actions on behalf of victims.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers and steal their session data or perform actions as them.

Potential impact on your site

04Site Impact

Authenticated attackers can compromise admin accounts and modify site content or settings through stored XSS attacks.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account and trick a victim into viewing a page containing the injected payload.

Key dates

06Disclosure timeline

February 1, 2024 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE