Responsive Tabs < 4.0.7 - Contributor+ Stored XSS

2024-03-2500:00:00

Dmitrii Ignatyev

wordpress

tab sets

stored xss

security exploit

request interception

5.9 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.0%

JSON

Description The plugin does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

1. Go to "Tab Sets > Add New" in WP Admin
2. Add a new tab and fill out values.
3. Intercept the request and for the `tabs_color` parameter, add the payload `"+onmouseover='alert(1)'"`
4. Send the request and then preview the tab group to see the XSS