Ninja Forms < 3.6.10 - Admin+ Stored Cross-Site Scripting via Import

2022-06-1000:00:00

wpvulndb

ninja forms

admin+

stored cross-site scripting

import

json file

xss payload

exploit

EPSS

0.001

Percentile

24.8%

JSON

The plugin does not sanitize and escape some imported data, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

- Make a test form and then export it to your system.
- Edit the file and enter an XSS payload like "<img src=x onerror=alert('XSS')" inside the title object in the JSON file.
- Go back to the import/export tab and notice that the payload was executed

EPSS

0.001

Percentile

24.8%

JSON

Related for WPEX-ID:323D5FD0-ABE8-44EF-9127-EEA6FD4F3F3D