Description

WordPress Plugin WordPress Popular Posts is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin WordPress Popular Posts version 5.3.3 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 5.3.4 or latest

References

https://cabrerahector.com/wordpress/wordpress-popular-posts-5-3-improved-php-8-support-retina-display-support-and-more/#5.3.4

https://plugins.svn.wordpress.org/wordpress-popular-posts/trunk/readme.txt

Related Vulnerabilities

WordPress Plugin Integration for Contact Form 7 HubSpot Cross-Site Scripting (1.1.9)

WordPress Plugin Wordfence Security-Firewall & Malware Scan Cross-Site Scripting (3.8.6)

WordPress Plugin Top 10-Popular posts for WordPress Multiple Vulnerabilities (3.2.3)

WordPress Plugin Share Buttons by AddThis Cross-Site Scripting (5.0.12)

Grafana Improper Authentication Vulnerability (CVE-2021-39226)

Severity

High

Classification

CVE-2021-36872 CWE-79 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update XSS