Vulnerabilities > CVE-2021-39345 - Unspecified vulnerability in Cnrs HAL

047910
CVSS 4.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
HIGH
Confidentiality impact
LOW
Integrity impact
LOW
Availability impact
NONE
network
low complexity
cnrs

Summary

The HAL WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/wp-hal.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 2.1.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.