CVE-2021-4074

WHMCS Bridge <= 6.1 Subscriber+ Stored Cross-Site Scripting

State: Published
Severity: 6.4 Medium
Published: Jan 18, 2022
Updated: Feb 14, 2025
Reserved: Dec 6, 2021

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.

Scores

CVSS	Score	Vector	Source
3.1	6.4 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N	Wordfence

Weaknesses

CWE-79 Cross-site Scripting (XSS)
CWE-862 Missing Authorization

Affected Products

Product	Versions
WHMCS BridgeWHMCS Bridge	6.1 through 6.1Affected

References

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