Markup <= 4.8.1 - Contributor+ Stored XSS via Shortcode

2023-01-2400:00:00

Lana Codes

162

wordpress

markup

contributor

stored xss

shortcode

0.001 Low

EPSS

Percentile

23.5%

JSON

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.

[wp-structuring-markup-breadcrumb class='" onmouseover="alert(1)"']

Note: If we add the shortcode to a page, select another page as "parent" so that the breadcrumb appears.

0.001 Low

EPSS

Percentile

23.5%

JSON

Related for WPEX-ID:A6D23F2F-9504-40DA-9B71-189033D8BD1D