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wpexploitRenniepakWPEX-ID:ED9D26BE-CC96-4274-A05B-0B7AD9D8CFD9
HistoryJul 27, 2021 - 12:00 a.m.

Favicon by RealFaviconGenerator < 1.3.22 - Reflected Cross-Site Scripting (XSS)

2021-07-2700:00:00
renniepak
312

The plugin does not sanitise or escape one of its parameter before outputting it back in the response, leading to a Reflected Cross-Site Scripting (XSS) which is executed in the context of a logged administrator. Timeline (WPScanTeam): June 28th, 2021 - Details sent to vendor July 9th, 2021 - Escalated to WP due to lack of response from vendor July 27th, 2021 - No update, disclosing August 9th, 2021 - v1.3.22 released, fixing the issue

Affected parameter: json_result_url

https://example.com/wp-admin/themes.php?page=favicon-by-realfavicongenerator%2Fadmin%2Fclass-favicon-by-realfavicongenerator-admin.phpfavicon_appearance_menu&json_result_url=%3Cimg%20src=x%20onerror=alert(document.domain)%3E
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