Simple Share Buttons Adder < 8.5.1 - Admin+ Stored XSS

2024-05-2800:00:00

Dmitrii Ignatyev

share buttons adder

stored xss

admin

plugin

settings

additional css

payload

save settings

trigger

page reload

5.9 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 editors to perform Cross-Site Scripting attacks even when unfiltered_html is disallowed

1. Go to the plugin settings
2. In the "Additional CSS" field, enter the payload `</style><img src=x onerror=alert(/XSS/)>`
3. Save settings and see the XSS when the page reloads