Description

WordPress Plugin Klaviyo 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 Klaviyo version 3.0.7 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 3.0.8 or latest

References

https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/klaviyo/klaviyo-307-authenticated-administrator-stored-cross-site-scripting

https://plugins.svn.wordpress.org/klaviyo/trunk/readme.txt

Related Vulnerabilities

Drupal Permissions, Privileges, and Access Controls Vulnerability (CVE-2007-5597)

WordPress Plugin Livemesh SiteOrigin Widgets Security Bypass (2.5.1)

Rukovoditel Improper Input Validation Vulnerability (CVE-2020-11819)

MySQL CVE-2017-3643 Vulnerability (CVE-2017-3643)

WordPress Plugin Contact Form DB-Elementor Cross-Site Request Forgery (1.5)

Severity

High

Classification

CVE-2023-25456 CWE-79 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update XSS