vulnerability
WordPress Plugin: whmcs-bridge: CVE-2021-4074: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 3 | (AV:N/AC:M/Au:S/C:N/I:P/A:N) | Jan 14, 2022 | May 15, 2025 | Apr 30, 2026 |
Severity
3
CVSS
(AV:N/AC:M/Au:S/C:N/I:P/A:N)
Published
Jan 14, 2022
Added
May 15, 2025
Modified
Apr 30, 2026
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.
Solution
whmcs-bridge-plugin-cve-2021-4074
References
- https://www.cve.org/CVERecord?id=CVE-2021-4074
- https://www.wordfence.com/threat-intel/vulnerabilities/id/24ba85a0-dbc7-4c9d-a67f-d449c1d275ab?source=api-prod
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-33967
- CVE-2021-4074
- https://attackerkb.com/topics/CVE-2021-4074
- CWE-79
- CWE-862
- EUVD-EUVD-2021-33967
Rapid7 Labs
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