WHMCS Bridge <= 6.1 Subscriber+ Stored Cross-Site Scripting
Vulnerability Description
The WHMCS Bridge WordPress plugin is vulnerable to Stored Cross-Site Scripting via the cc_whmcs_bridge_url parameter found in the ~/whmcs-bridge/bridge_cp.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 6.1. Due to missing authorization checks on the cc_whmcs_bridge_add_admin function, low-level authenticated users such as subscribers can exploit this vulnerability.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-4074
Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Kazuto Kokonoe, Tokyo Denki University Cryptography Laboratory
Affected Vendor
WHMCS Bridge
View all reports →