CVE-2021-4074 WHMCS Bridge <= 6.1 Subscriber+ Stored Cross-Site Scripting

2022-01-1816:52:27

CWE-862

CWE-79

Wordfence

www.cve.org

6.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

0.001 Low

EPSS

Percentile

19.5%

JSON

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.

CNA Affected

[
  {
    "product": "WHMCS Bridge",
    "vendor": "WHMCS Bridge",
    "versions": [
      {
        "lessThanOrEqual": "6.1",
        "status": "affected",
        "version": "6.1",
        "versionType": "custom"
      }
    ]
  }
]