Embed PDF Viewer <= 2.3.1 - Authenticated (Editor+) Stored Cross-Site Scripting

2024-12-19 00:00

Ibnu Ubaeydillah

Strategic Overview

Status

Patched in 2.4.0

Affected PluginEmbed PDF Viewer

Affected Version<= 2.3.1

CVSS4.4Medium

CVECVE-2024-56256

View all Embed PDF Viewer vulnerabilities

Vulnerability Overview

The Embed PDF Viewer plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Technical Analysis

REMEDIATION: Update to version 2.4.0, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2024-56256 https://www.wordfence.com/threat-intel/vulnerabilities/id/31064f51-3765-403d-b07d-dc2bb286b82d

CVSS Vector

4.4

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

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredHigh
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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