Social Pixel <= 2.1 - Admin+ Stored XSS

2024-05-2400:00:00

Bob Matyas

social pixel

version 2.1

admin+ role

stored xss

facebook identificador

options-general.php

xss exploit

5.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.1%

JSON

Description The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

1. Go to: https://example.com/wp-admin/options-general.php?page=social-pixel
2. Under "Facebook" add the payload `'); alert(2); console.log('blah` for the "Identificador".
3. Click the checkbox next to "Activación"
4. Save the settings and view the site to see the XSS