Security Advisory

CVE-2021-41836

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2021-12-14 15:50:10

Last updated 2025-02-10 14:55:13

Assigner Wordfence

State PUBLISHED

Description

The Fathom Analytics WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and escaping via the $site_id parameter found in the ~/fathom-analytics.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 3.0.4. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

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