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Asif Nawaz MinhasWPVDB-ID:9ADF7022-5108-43B7-BF0E-A42593185B74HistoryJul 26, 2021 - 12:00 a.m.
Simple Banner < 2.10.4 - Authenticated Stored XSS
2021-07-2600:00:00
Asif Nawaz Minhas
wpscan.com
11
simple banner plugin
authenticated stored xss
unsanitised settings
admin privilege
cross-site scripting
xss payload
unfiltered html capability
EPSS
0.001
Percentile
21.4%
The plugin does not sanitise and escape one of its settings, allowing high privilege users such as admin to use Cross-Site Scripting payload even when the unfiltered_html capability is disallowed.
PoC
Put the following payload in the Simple Banner Text setting of the plugin: The XSS will be triggered in the plugin’s settings, as well as any frontend page with the banner
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