Vulnerability Details CVE-2021-41836
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 53.2%
CVSS Severity
CVSS v3 Score 4.8
CVSS v2 Score 3.5
References
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2641005%40fathom-analytics&new=2641005%40fathom-analytics&sfp_email=&sfph_mail=
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-41836
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2641005%40fathom-analytics&new=2641005%40fathom-analytics&sfp_email=&sfph_mail=
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-41836
Products affected by CVE-2021-41836
-
cpe:2.3:a:conva:fathom_analytics:-
-
cpe:2.3:a:conva:fathom_analytics:1.0.0
-
cpe:2.3:a:conva:fathom_analytics:1.0.1
-
cpe:2.3:a:conva:fathom_analytics:2.0.0
-
cpe:2.3:a:conva:fathom_analytics:2.0.1
-
cpe:2.3:a:conva:fathom_analytics:2.0.2
-
cpe:2.3:a:conva:fathom_analytics:2.0.3
-
cpe:2.3:a:conva:fathom_analytics:2.0.4
-
cpe:2.3:a:conva:fathom_analytics:3.0.0
-
cpe:2.3:a:conva:fathom_analytics:3.0.1
-
cpe:2.3:a:conva:fathom_analytics:3.0.2
-
cpe:2.3:a:conva:fathom_analytics:3.0.3
-
cpe:2.3:a:conva:fathom_analytics:3.0.4