CVE-2024-33639 MEDIUM

CVE-2024-33639: WordPress PopupAlly plugin <= 2.1.1 - Cross Site Scripting (XSS) vulnerability

Vendor Accessally
Product PopupAlly
Weakness CWE-79 · XSS
Published April 26, 2024
Last update April 28, 2026
View on NVD All CVEs

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

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in AccessAlly PopupAlly allows Stored XSS.This issue affects PopupAlly: from n/a through 2.1.1.

Explanation of Vulnerability in Simple Terms

02Summary

PopupAlly versions up to 2.1.1 contain a stored cross-site scripting (XSS) vulnerability that allows high-privilege users to inject malicious scripts. When a victim visits a page containing the injected content, the script executes in their browser, potentially compromising their session or stealing data. The vulnerability requires user interaction and affects the integrity and confidentiality of site visitors.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute when other users view affected pages, stealing sessions or data.

Potential impact on your site

04Site Impact

Site visitors' browsers can be compromised; their sessions or personal data may be stolen by a malicious admin or editor.

Conditions required to exploit

05Prerequisites

Attacker must have high-level site privileges (e.g., admin or editor role) and the victim must visit a page with the injected content.

Key dates

06Disclosure timeline

April 26, 2024 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE

CVE-2026-15653 Visualizer <= 4.0.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'backend-title' Parameter CVE-2026-15016 Paid Memberships Pro – Content Restriction, User Registration, & Paid Subscriptions <= 3.8.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting CVE-2026-15333 Cozy Blocks <= 2.2.11 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'cozyCustomFont' Block Attribute CVE-2026-15755 Open User Map <= 1.4.45 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes CVE-2026-65538 WordPress Machete plugin <= 5.2 - Cross Site Scripting (XSS) vulnerability