Simple Posts Ticker < 1.1.6 - Admin+ Stored XSS

2023-09-2500:00:00

Dmitrii Ignatyev

xss

stored

admin

settings

payload

exploit} .

0.0004 Low

EPSS

Percentile

14.2%

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 "Settings > Simple Posts Ticker > Styles"
2. Add the payload `3px;"><img src=x onerror=alert(1)>` for the "Ticker Border Width"
3. Save the settings and navigate back to the page to see the XSS.