CVE-2021-36847 MEDIUM

CVE-2021-36847: WordPress Webba Booking plugin <= 4.2.21 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability

Vendor Webbaplugins
Product Webba Booking (WordPress plugin)
Weakness CWE-79 · XSS
Published August 22, 2022
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

4.8/10
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:N

What the vulnerability does

01Description

Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in WebbaPlugins Webba Booking plugin <= 4.2.21 at WordPress.

Explanation of Vulnerability in Simple Terms

02Summary

Webba Booking for WordPress contains a stored cross-site scripting (XSS) vulnerability in versions up to 4.2.21. An authenticated user with high privileges can inject malicious scripts that execute in other users' browsers when they view affected pages. The vulnerability requires user interaction and can affect the site's integrity and confidentiality.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers when they view the plugin's pages.

Potential impact on your site

04Site Impact

Admins or editors with malicious intent can inject scripts to steal data, modify content, or compromise other user accounts.

Conditions required to exploit

05Prerequisites

Attacker must have high-level WordPress privileges (e.g., admin or editor role) and the victim must visit an affected page.

Key dates

06Disclosure timeline

August 22, 2022 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE

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