EmbedPress – Embed PDF, Google Docs, Vimeo, Wistia, Embed YouTube Videos, Audios, Maps & Embed Any Documents in Gutenberg & Elementor < 3.9.11 - Authenticated (Contributor+) Stored Cross-Site Scripting via Wistia Block

2024-03-0700:00:00

wpscan.com

embedpress

wordpress

plugin

vulnerability

stored cross-site scripting

wistia

input sanitization

output escaping

CVSS3

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

5.7

Confidence

High

EPSS

Percentile

9.0%

JSON

Description The EmbedPress – Embed PDF, Google Docs, Vimeo, Wistia, Embed YouTube Videos, Audios, Maps & Embed Any Documents in Gutenberg & Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin’s Wistia embed block in all versions up to, and including, 3.9.10 due to insufficient input sanitization and output escaping on the user supplied url. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.