Google CSE <= 1.0.7 - Admin+ Stored XSS

2024-05-3100:00:00

Bob Matyas

google cse

stored xss

admin+

vulnerability

exploit

web security

5.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

14.2%

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/options-general.php?page=google-cse-options
2. Enter the payload `da"><script>alert(1)</script>` for either input and save
3. See the XSS