WP Staging (Free < 3.4.0, Pro < 5.4.0) - Admin+ Stored XSS

2024-03-2700:00:00

Dmitrii Ignatyev

wp staging

admin+

stored xss

backup & migration

vulnerability

5.7 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

8.6%

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 "WP Staging > Backup & Migration"
2. Edit an existing backup's "Backup Name" field, setting it to: `123123" onmouseover='alert(1)'`
3. Save and see the XSS when reopening the edit screen