Font Farsi <= 1.6.6 - Admin+ Stored XSS in Settings

2024-03-1800:00:00

Bob Matyas

font farsi

admin+

stored xss

settings

exploit

AI Score

5.7

Confidence

High

EPSS

Percentile

9.0%

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=font-farsi-custom-font
2. In the first field, add `"><script>alert(32)</script>`
3. Click "Save Changes" and see the XSS

Note: Other fields are likely vulnerable