CVE-2024-56256 MEDIUM

CVE-2024-56256: WordPress Embed PDF Viewer plugin <= 2.3.1 - Cross Site Scripting (XSS) vulnerability

Vendor Andy Fragen
Product Embed PDF Viewer
Weakness CWE-79 · XSS
Published December 31, 2024
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

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Andy Fragen Embed PDF Viewer embed-pdf-viewer.This issue affects Embed PDF Viewer: from n/a through <= 2.3.1.

Explanation of Vulnerability in Simple Terms

02Summary

Embed PDF Viewer versions up to 2.3.1 contain a cross-site scripting vulnerability that allows an authenticated administrator to inject malicious scripts. The vulnerability requires user interaction—typically clicking a crafted link—and can affect other users on the site. An attacker with admin privileges can inject code that executes in visitors' browsers, potentially stealing session data or modifying page content.

What an attacker can do

03Attacker Capabilities

Inject malicious JavaScript that runs in other users' browsers when they visit the site.

Potential impact on your site

04Site Impact

A compromised admin account can inject scripts affecting all site visitors, risking credential theft or malware distribution.

Conditions required to exploit

05Prerequisites

Administrator account access and victim must click a malicious link or visit a crafted page.

Key dates

06Disclosure timeline

December 31, 2024 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE