Mime Types Extended <= 0.11 - Author+ Stored XSS via SVG Upload

2024-06-0400:00:00

Bob Matyas

wpscan.com

mime types extended

vulnerability

stored xss

svg upload

low privilege users

5.7 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.1%

JSON

Description The plugin does not sanitise uploaded SVG files, which could allow users with a role as low as Author to upload a malicious SVG containing XSS payloads.

PoC

1. As an admin, enable SVG uploads at https://example.com/wp-admin/options-general.php?page=mime-types-extended 2. As an author, upload a malicious SVG via the Media Library. Example SVG: