WordPress Jitsi Shortcode <= 0.1 - Admin+ Stored XSS

2024-05-2400:00:00

Bob Matyas

wordpress

jitsi

shortcode

admin

stored xss

vulnerability

exploit

5.6 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 admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

1. Go to: https://example.com/wp-admin/admin.php?page=jitsi-wordpress-settings
2. Add the payload `"><script>alert(2)</script>"` to either of the inputs.
3. Save and and see the XSS.