Time Sheets < 1.29.3 - Admin+ Stored XSS

2023-03-2000:00:00

Shreya Pohekar

time sheets

admin

stored xss

exploit

security document

EPSS

0.001

Percentile

23.5%

JSON

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. Login as Admin.
2. Go to https://example.com/wp-admin/admin.php?page=time_sheets_settings
3. Insert the payload `'><script>alert(1)</script>` in the field `Email address to email when a project is over on hours:`
4. Click on save changes and XSS payload will be stored and triggered.

EPSS

0.001

Percentile

23.5%

JSON

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